ANOVA is a technique that permits the comparison of the equality of means for multiple populations. Thus, 3 means could be compared and a determination of whether or not one of the means is significantly different from others can be made. This technique is extremely useful, but, as is always the case, the application requires a firm understanding of models assumptions. Consider the following scenario. A meticulously determined random sample of 200 observations is taken from a very large population. This data divides into 4 groups or factor levels, and a numerical measure for each observation is recorded. The population distribution of the measure appears to be slightly skewed positive. The 4 groups have the following number of observations 30, 100, 15 and 55. Which of the following statements leads to the greatest concern in using ANOVA as an analytical technique.
a. Unequal sample sizes among groups can seriously affect the power of the test.
b. Slightly skewed positive distribution of population measures seriously affect the power of the test.
c. In this scenario, I should be concerned about whether the data has been gathered in a biased fashion.
d. Four is not a sufficient number of groups into which to divide the data.

Answers

Answer 1

Answer:

c. In this scenario, I should be concerned about whether the data has been gathered in a biased fashion.

Explanation:

ANOVA is a statistical method which separates observed variance data into different components to use. One way ANOVA is used for three or more groups of data. The greatest concern in ANOVA is that the data gathered should not be biased.


Related Questions

Which type of transport is used to move a molecule from a region of low
concentration to a region of high concentration?
A. Active transport
B. Osmosis
C. Passive transport
D. Diffusion
SUBMIT

Answers

Answer:

A.(Active transport) is used to move a molecule from a region of low concentration to a region of high concentration.

A = active transport

active transport is the movement of molecules or ions from a region of their low concentration to that of their High concentration across a Semipermeable membrane with the use of oxygen

Guinea pigs can produce different coat colors, white, brown, and mixed white/brown (agouti). The allele B is codominant with allele W (white coat). Cross an agouti-colored Guinea pig with a brown Guinea pig. What are the odds of the offspring?

Answers

Answer:

Brown

Explanation:because the agouti itself is a mixture that remains of a pale brown color and the melanin content in the animals is in the darker colors so it is more likely that the brown color is predominant to the agouti due to the content of melanin that it

The descendants of a cross between an agouti heterozygous (AB) colored Guinea pig and a brown (BB) colored Guinea pig are half heterozygous agouti, half homozygous brown. The correct option is A.

What exactly is codominance?

Codominance is a genetic effect that happens whenever the alleles are expressed in heterozygotes.

In this particular instance, allele B co-dominates with allele W, resulting in heterozygous (WB) colored Guinea pigs like one of the parents.

Thus, the correct option is A.

For more details regarding co-dominance, visit:

https://brainly.com/question/9881046

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The missing options of the question are:

A. 1/2 heterozygous brown, 1/2 homozygous agouti.B. 1/2 homozygous white, 1/2 heterozygous brown.C. 1/4 homozygous brown.D. 1/2 heterozygous agouti, 1/4 white.

he heme prosthetic group consists of protoporphyrin and an iron (II) ion. is the reason for cooperative binding of O2 by hemoglobin. is found only in myoglobin and hemoglobin. is the reason for cooperative binding of O2 by myoglobin.

Answers

Answer:

The correct answer is ''consists of protoporphyrin and an iron (II) ion.''

Explanation:

The heme group makes up the prosthetic (non-protein) group of hemoglobin and is responsible for its characteristic red color. It is composed of protoporphyrin IX, in the center of which is the ferrous ion (Fe+2). Protoporphyrin IX, in turn, is composed of four pyrrolic rings. The heme group is synthesized by the mitochondria, where protoporphyrin IX binds with the ferrous ion, before being released into the cytoplasm. The heme group is released in erythrocyte lysis, thus obtaining unconjugated or indirect bilirubin.

Can somebody help me

Answers

Answer:

Structurally, plant and animal cells are very similar because they are both eukaryotic cells. They both contain membrane-bound organelles such as the nucleus, mitochondria, endoplasmic reticulum, golgi apparatus, lysosomes, and peroxisomes. Both also contain similar membranes, cytosol, and cytoskeletal elements.

Plant cells can be larger than animal cells. The normal range for an animal cell varies from 10 to 30 micrometers while that for a plant cell stretches from 10 to 100 micrometers. Beyond size, the main structural differences between plant and animal cells lie in a few additional structures found in plant cells. These structures include: chloroplasts, the cell wall, and vacuoles.

I Hope this will help you if not then Sorry, Have a wonderful day !

where in an embryo are the instructions located for how to build organs

Answers

Answer:In the nucleus

Explanation:

The information for all bodily functions resides in DNA in every cell.

The organisms that harness non-biological energy and convert it to biologically relevant/useful energy are called __ 1 __ _. The organisms that consume these are called __ 2 __ _ (it should end in -ores) which occur at the ___ 3 ___ trophic level. The number of trophic levels that any ecological system will primarily dependent on the __4__ organisms.

Answers

Answer:

The organisms that harness non-biological energy and convert it to biologically relevant/useful energy are called __autotrophos or producers_. The organisms that consume these are called _herbivores_ (it should end in -ores) which occur at the __second_ trophic level. The number of trophic levels that any ecological system will primarily dependent on the _consumer_ organisms.

Explanation:

 In the trophic web occurs energy transference through organisms occupying different levels in the chain. Each level feeds on the preceding one and becomes food for the next one. The first link is occupied by autotroph organisms, which are the producer. The following links are the consumers: herbivores are primary consumers and feed on producers. Carnivores are secondary consumers and feed on herbivores, and so on. The last links are the decomposers, microorganisms that act on dead animals degrading organic matter.  

Every link has an effect on the superior links and the immediately anterior link, meaning that whenever one of the links changes, the other ones will be affected.  

Autotrophs or producers synthesize inorganic substances, such as light, and turn them into organic matter according to their own needs. These organisms are photoautotrophs, such as plants, or chemoautotrophs. They occur at the first trophic level.

Heterotrophs are those incapable of producing their own organic matter, so they feed on producers, depending on them to get proteins and energy. In the trophic chain, heterotrophic organisms occupy the first, second, or third consumer level, after producers. These animals can be herbivorous, carnivorous,  omnivorous, hematophagous, ichthyophagous, and etcetera. All of them depend on autotrophic organisms.

In the particular case of herbivores, they occur at the second throphic level feeding on producers and being eaten by carnivores.

In general, most trophic chains are composed of 4 or 5 levels, depending on the number of consumers present, and the energy transference between levels.

A scientist places 25 mg of bacteria in a culture for an experiment and he finds that the mass of the bacteria triples every day. The mass of the bacteria in the culture on any given day is what percent of the mass of bacteria in the culture exactly one day prior

Answers

Answer:

300%

Explanation:

The mass of the bacterial culture is triples everyday, meaning that after one day the culture will have 300% of the mass as the culture one day prior.

silicon and _______ stay in the the outer cells pls tell me fast​

Answers

Answer:

It could be halogens for example things like fluorine

Suppose a researcher introduces a mutation into the glucosidase domain of the mammalian glycogen debranching enzyme. The mutation inhibits the activity of the glucosidase but does not affect the other functions of the enzyme. The researcher then introduces the mutated enzyme into mammalian cells that do not express wild type glycogen debranching enzyme. Predict the effect of the mutation on glycogen metabolism.

Answers

Answer:

cells will have glycogen molecules with branches of a single glucose residue

Explanation:

Glycogen debranching enzymes are proteins that catalyze the removal of branching from glycogen, which is a multibranched polysaccharide composed of glucose units and serves as a form of energy storage. These enzymes have two catalytic activities on a single polypeptide chain: glucosyltransferase and glucosidase activities, which are both required for glycogen breakdown. Glycogen degradation requires both glycogen phosphorylase and glycogen debranching enzymes. First, a glycogen phosphorylase acts to digest a glycogen branch down to four glucose residues. Subsequently, the debranching enzyme through its glucosyltransferase activity acts to transfer three glucose residues to a nearby branch of the glycogen chain. Finally, through its glucosidase activity, the debranching enzyme cleaves the remaining α-1,6 linkage in order to release free glucose.

A thermometer is placed in water in order to measure the water’s temperature. What would cause the liquid in the thermometer to drop?

Answers

Answer:

The kinetic energy of the water molecules decreases which causes the liquid in the thermometers to drop.

Explanation:

Hope this helped. Could you please make me Brainliest? It's alright if you don't though ☺️

In _______, with the help of Rosalind Franklin, ____________ discovered the structure of DNA.
A. 1915, Watson and Crick
B. 1953, Watson and Chargaff
C. 1953, Watson and Crick
D. 1951, Chargaff

Answers

Answer:

The answer is C.) 1953, Watson and Crick. In 1953, with the help of Rosalind Franklin, Watson and Crick discovered the structure of DNA.

Explanation:

To be specific, James Watson and Francis Crick were the first people to make a 3-D model of DNA. Although it may not seem much today, as our technology has advanced so much ever since, it was big time in 1953. They discovered that DNA was shaped like a double-helix, or twisting ladder. Pretty intriguing if you ask me!

what happen to Potato chips when put into salt water?​

Answers

Answer: the potato chip becomes a substance that is soft and very floppy

What is the biggest part of the brain?

Answers

Answer:

Cerebrum

Explanation:

The cerebrum is divided into two hemispheres or halves and is the biggest portion of the brain. The cerebrum is in charge of voluntary movement, speech, intellect, memory, emotion, and sensory processing, among other things.

OAmalOHopeO

What is chelpus mean?​

Answers

Answer:

chelpus is a hacker that hack paid apps from market and make it usable for free

What was the name of your fish sample, according to the restaurant menu?
Types of Sashimi (slice of raw fish) listed on the restaurant menu:
1. Escolar – Super white tuna
2. Maguro – Big eye tuna
3. Hamachi – Yellowtail
4. Tai – Red snapper
5. Nama Sake – Salmon
6. Saba – Mackerel Fish

Answers

normally, yellowtail and salmon is served as sashimi but im not sure I don't really get the question lol

the matter in an animal body is not capable of moving and changing without ?

Answers

Answer:

Energy

Explanation:

The matter in an animal body is not capable of moving and changing without energy.

the body is not capable of moving without energy .

1. Describe the purpose of mitosis.
2. Describe what is happening in each stage and what each stage looks like:
Prophase
Prometaphase
Metaphase
Anaphase
Telophase
Cytokinesis

Answers

Answer:

1) The purpose of mitosis is growth and repair of cells

Explanation:

Prophase:

-DNA condenses (supercoiled, chromatids are visible under light microscope);

-Nuclear membrane begins to disintegrate (by the end of prophase  it is completely gone)

-Centrioles move to opposite ends of the cell

-Splinde fibers start to form from the centrioles and grow

Metaphase:

-Spindle fibers, departing from both poles, are attached to each centromere, on opposite sides

-The spindle fibers pull the chromosomes back and forth until they align in a plane along the equator of the cell, which is called the equatorial plane

Anaphase:

-The spindle fibers shorten

-The centromeres of sister chromatids split

-Chromatids move apart, pulled by the spindle fibers

-Chromatids become chromosomes

-Half of the chromosomes move to one cell pole, half to the other

Telophase:

-The chromosomes reach the cell pole

-Nuclear membrane reforms

-Spindle fibers break down and disappear

-The chromosomes begin to uncoil, which makes them diffuse and less compact

Cytokinesis:

-The cell membrane pinches inward until the cell divides in two;

-There are two daughter cells with the same structures and number of chromosomes as the parent cell

-Chromosomes decondense

What geological evidence could there be for the presence of an early ocean?

Select one:

a.
Marine sedimentary rocks can be dated back about 4 billion years.


b.
The iron contained in the rocks combined with the oxygen to form reddish iron oxides.


c.
Oxygen is needed to make ozone, a molecule made of three oxygen ions, O3.


d.
No animals would have been able to breathe in Earth's early atmosphere.

Answers

Answer:

i think the correct answer is D

Bodily energy Taoists cultivate within themselves is called:
A. Jen
B. Tao
C. Wu
D. Chi

Answers

Answer:

The correct answer is - D. Chi.

Explanation:

Taoist is a Chinese origin tradition that is spiritual and philosophical and focuses on living in harmony with, the source, patter, and substance of everything exists called Tao.

They believe that Chi is the bodily energy one needs to cultivate within oneself it is known as the energy of life and it translates as cultivation of energy. One can cultivate by relaxing and focusing on the body, abdominal breathing, connect to the earth and believe in chi.

Classify amoeba to species level

Answers

Domain: Eukaryota
Kingdom: Amoebozoa
Phylum: Tubulinea
Order: Tubulinida
Family: Amoebidae
Genus: Amoeba
Species: Proteus, Animalcule, Dubia, Animulecule, etc


Please mark as brainliest if it’s rigjt thx

Which of the following statements is true about interacting with people from different cultures? O a) Most people within a culture think and act the same. O b) It's important to treat people from different cultures as individuals. Oc) Some cultures are better than other cultures. Generalizations and stereotypes don't impact people's perceptions of cultures.

Answers

Answer:

I hope it helps you

I think b is the answer

Which of the following processes releases heat?

Evaporation
Freezing
Melting
Sublimation

Answers

The correct answer is B: Melting

Answer:

Freezing

Explanation:

I got 123% on the quiz (Jokes aside yes it is freezing)

Lowest to highest degree of internal organization stomach

Answers

Answer: Epithelial stomach cell, stomach lining tissue, stomach and then the whole digestive system.

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Which was ventures contribution to science

Answers

By discovering a synthetic cell . I hope you have a great day

if you look away from this sentence and focus your eyes on a distant object, the eye muscles _______ to focus images on the retinas

Answers

If you look away from this sentence and focus your eyes on a distant object, the eye muscles relax to focus images on the retinas.

If a physicist performs an experiment, who would likely try to replicate it?

The physicist himself
Other physicists
The family of the physicist
No one, because an experiment can never be replicated

Answers

I think the answer is the second one.

Evalute paper bags versus poly bags on the following parameters strength, cost, reusability impact on environment ​

Answers

Answer:

Poly bags are more stronger than paper bags.

Explanation:

Poly bags are more stronger than paper bags due to the use of materials in it while on the other hand, cost of production on the poly bags is less than paper bags. Poly bags can't be reuse whereas the paper bags can be used. The poly bags causes more pollution in the environment due to its non-degradable nature as compared to paper bags that degrades easily and has a good impact on environment.

What do you think will happen to the convention currents in the mantle if the interior of Earth eventually cools down

Answers

Answer:

No convention currents occur.

Explanation:

If the interior part of the Earth is cool down, it will leads to convection currents to stop. Due to this cool down of the earth's interior part cease the motion of the plates and the Earth would become geologically dead. Convection currents within the Earth's mantle occurs when the hot material rising upwards and then dropping back toward the core due to cooling so if the mantle is cool so no movement occurs as well as no convention currents.

In April 1990, the El Paso County (Colorado) Health Department recognized an outbreak of drug-resistant gonorrhea in Colorado Springs. 56 cases of penicillin- resistant Neisseria gonorrheae occurred from December 1989 through March 1991. To gather information about the outbreak, 410 persons related through a densely connected set of social or sexual associations were interviewed. What can public health workers tell individuals in this network to stop the spread of Gonorrhea in this population?
a) Preventive treatment with penicillin will prevent Gonorrhea infection in individuals not already infected.
b) Only individuals with symptoms should seek medical screening since all cases of Gonorrhea are associated with symptoms.
c) Condoms will not prevent the spread of Gonorrhea. Gonorrhea can spread from an infected mother to a fetus.
d) Gonorrhea is more prevalent in individuals 24 years and older.

Answers

Answer:

c) Condoms will not prevent the spread of Gonorrhea. Gonorrhea can spread from an infected mother to a fetus.

Explanation:

To prevent the spread of infection, it is important that healthcare professionals inform people about ways to protect themselves against infection. In addition, it is important that health professionals inform the dangers that this infection can cause, such as symptoms and rapid transmission, which can even happen from mother to fetus. On how to protect themselves, health professionals can say that the use of condoms is the most efficient form of protection.

Another name for plasma

Answers

Answer:

life blood

is this it?

Answer:

Blood

Explanation:

Is the liquid component of the blood. Mammalian blood consists of a liquid (plasma) and a number of cellular and cell fragment components.

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Other Questions
It is April 2018 and Mark is a novice investor who wants to decide between purchasing shares in EagleCorp or Myna Bird Inc. In fiscal year 2017, EagleCorp's return on invested capital (ROIC) was 15 percent, and its cost of capital was 12 percent. During the same period, Myna Bird Inc.'s ROIC was 22 percent and its cost of capital was 25 percent. What does this information tell Mark? Question 1 options: Myna Bird Inc. is more likely to create value while EagleCorp is more likely to destroy value. EagleCorp is more likely to create value while Myna Bird Inc. is more likely to destroy value. Both Myna Bird Inc. and EagleCorp are likely to create value. Neither Myna Bird Inc. nor EagleCorp are likely to create value. Required information [The following information applies to the questions displayed below.] Hudson Co. reports the contribution margin income statement for 2019. HUDSON CO. Contribution Margin Income Statement For Year Ended December 31, 2019 Sales (9,600 units at $225 each) $ 2,160,000 Variable costs (9,600 units at $180 each) 1,728,000 Contribution margin 432,000 Fixed costs 324,000 Pretax income $ 108,000 1. Assume Hudson Co. has a target pretax income of $162,000 for 2020. What amount of sales in dollars) is needed to produce this target income? 2. If Hudson achieves its target pretax income for 2020, what is its margin of safety (in percent)? (Round your answer to 1 decimal place.) 1. Amount of sales 2. Margin of safety 1. Compute Hudson Co.'s contribution margin per unit. 2. Compute Hudson Co.'s contribution margin ratio. 3. Compute Hudson Co.'s break-even point in units. 4. Compute Hudson Co.'s break-even point in sales dollars. per unit 1. Contribution margin 2. Contribution margin ratio 3. Break-even point 4. Break-even sales dollars units The marketing manager believes that increasing advertising costs by $81,000 in 2020 will increase the company's sales volume to 11,000 units. Prepare a forecasted contribution margin income statement for 2020 assuming the company incurs the additional advertising costs. HUDSON CO. Forecasted Contribution Margin Income Statement For Year Ended December 31, 2020 Sales Variable costs Contribution margin Fixed costs Income (pretaxy Loss Should the company incur the additional advertising costs? Fabrics has budgeted overhead costs of $1,039,500. It has allocated overhead on a plantwide basis to its two products (wool and cotton) using direct labor hours which are estimated to be 495,000 for the current year. The company has decided to experiment with activity-based costing and has created two activity cost pools and related activity cost drivers. These two cost pools are cutting (cost driver is machine hours) and design (cost driver is number of setups). Overhead allocated to the cutting cost pool is $396,000 and $643,500 is allocated to the design cost pool. Additional information related to these pools is as follows: Wool Cotton Total Machine hours 110,000 110,000 220,000 Number of setups 1,100 550 1,650Required:Calculate the overhead rate using activity based costing. In ________ organizational cultures, more individuality is shown through the organizations rules being less strictly applied. A permanent flood control dam is expected to have an initial cost of $2.8 million and an annual upkeep cost of $20,000. In addition, minor reconstruction will be required every 5 years at a cost of $200,000. As a result of the dam, flood damage will be reduced by an average of $180,000 per year. Using an interest rate of 6% per year, the conventional B/C ratio will be closest to: During December, Far West Services makes a $2,000 credit sale. The state sales tax rate is 6% and the local sales tax rate is 2.5%. Required:Record sales and sales tax payable. The objectives of the internal control structure for a production cycle are to provide assurance that transactions are properly executed and recorded, and that:a. independent internal verification of activity reports is established.b. transfers to finished goods are documented by a completed production report and a quality control report.c. production orders are pre-numbered and signed by a supervisor.d. custody of work in process and of finished goods is properly maintained. When your tire blows out in the middle of a drive, you should A. let go of the steering wheel B. pump the brakes immediately C. grip the steering wheel firmly D. immediately steer to the side of the road If demand is not uniform and constant, then stockout risks can be controlled by: increasing the EOQ. spreading annual demand over more frequent, but smaller, orders. raising the selling price to reduce demand. adding safety stock. reducing the reorder point. 2. 10.00 grams of a sample of hydrated PtCl4 are heated and lose 3.00 g of water. How many moles of water are combined with each mole of PtCl4? (a) Joe runs 12 miles in 84 minutes.How many miles does he run per minute?miles per minute Writers do not need to cite Websites they use as sources in a Works CitedTrue or False? Rodney and their roommates are making homemade pizza for dinner. Rodney tells his roommates that he would like for his slice to be cut at a 100 degree angle. The pizza has a diameter of 20 inches. To the nearest tenth of an inch, find the area of Rodney's slice of pizza. Approximate pi at 3.14. In an experiment, colored letters flash briefly on a computer screen. On each trial, participants are asked to report the letters in their correct colors and to rate their confidence in their responses. In one condition, participants are required simultaneously to monitor the screen for the appearance of a particular digit. Which alternative correctly identifies the dependent variable(s) in this experiment PLEASE HELP!The table shows a representation of the number of miles a car drives over time.A 2-column table with 4 rows. Column 1 is labeled Hours, x with entries 3, 4, 5, 6. Column 2 is labeled Miles, y with entries 195, 260, 325, 390. Pattern: Each x value is multiplied by 65 to get each y value.What is the equation for this situation?y = 195 +3y = 195y = 65 +3y = 65Which could NOT be a point on this table?2, 1308, 4451, 6511, 715 Break-Even Units: Units for Target Profit Jay-Zee Company makes an in-car navigation system. Next year, Jay-Zee plans to sell 16,000 units at a price of $320 each. Product costs include: Direct materials $68Direct labor $40Variable overhead $12Total fixed factory overhead $500,000Variable selling expense is a commission of 5 percent of price; fixed selling and administrative expenses total $116,400.Required:1. Calculate the sales commission per unit sold. Calculate the contribution margin per unit.2. How many units must Jay-Zee Company sell to break even? Prepare an income statement for the calculated number of units.3. Calculate the number of units Jay-Zee Company must sell to achieve target operating income (profit) of $333,408.4. What if the Jay-Zee Company wanted to achieve a target operating income of $322,000? Would the number of units needed increase or decrease compared to your answer in Requirement 3? Compute the number of units needed for the new target operating income. Hai gi sch c 450 cun sch .Nu chuyn 50 quyn t gi th nht sang gi th hai th s sch gi s hai s bng 4/5 s sch gi th nht ?Tnh s sch mi gi. Complete the list of principal parts for the following verb.Present:Past: atePast Participle: (have) Imagine that you are given two linear equations in slope-intercept form. Younotice that both the slopes and the y-intercepts are the same. How manysolutions would you expect for this system of equations?O A. 1. C. infinitely manyO D. cannot be determinedSURAT Identify a positive coterminal angle for the angle shown below. You must answer in radians.