Mathematics High School

Ezekiel wants to use a one-sample z interval to estimate the proportion of seniors at his school who have a smartphone. He takes an SRS of 20 of the 100 total seniors and finds that 12 of those sampled have a smartphone. Which conditions for constructing this confidence interval did Ezekiel's sample meet?
Choose all answers that apply:

Answers

Answer 1

Answer:

answer is A

Step-by-step explanation:

"The data is a random sample from the population of interest.

This condition is met since he took an SRS (simple random sample) from the population of interest."

khan academy (trust me i try to find the answer might as well just give it, it was the only green one)

Answer 2

Answer:

A. The data is a random sample from the population of interest.

Step-by-step explanation:

Related Questions

2. At the local park, there is an annual fair that
charges $1.50 for children and $4 for adults. On
Friday, the fair sold 220 tickets and collected
$550. How many children and how many
adults attended the fair?

Answers

Answer:

132 children and 88 adults

Step-by-step explanation:

let x represent the amount of kids and y represent the amount of adults.

since the problem says there was a total of 220 people at the fair an equation can be made

x+y=220

the problem tells that each childrens ticket was 1.5$ and each adult ticket was $4 and that a total of $550 was made that day, we can use the knowledge to make an equation:

1.5x + 4y = 550

using the equations we can make this systems of equations:

1.5x + 4y =550

x + y =220

solve the systems of equations by subracting y on both sides of th bottom equation:

x=220-y

since x is equivant to 220-y it can be substitued for x in the first equation to make this:

1.5(220-y)+4y =550

--solve for y--

y=88 - there were 88 adults

substute 88 for y in the second equation

x+88=220

--solve for x--

x=138 - there were 132 children

Select the correct text in the passage.
In this excerpt from A Christmas Carol by Charles Dickens, which sentence indicates that Scrooge formed relationships primarily for selfish
reasons?
"I don't mind going if a lunch is provided," observed the gentleman with the excrescence on his nose. "But I must be fed, if I make one."
Another laugh.
"Well, I am the most disinterested among you, after all," said the first speaker, "for I never wear black gloves, and I never eat lunch. But I'll offer
to go, if anybody else will. When I come to think of it, I'm not at all sure that I wasn't his most particular friend; for we used to stop and speak
whenever we met. Bye, byel
Speakers and listeners strolled away, and mixed with other groups. Scrooge knew the men, and looked towards the Spirit for an explanation.
The Phantom glided on into a street. Its finger pointed to two persons meeting. Scrooge listened again, thinking that the explanation might lie
here.
He knew these men, also, perfectly. They were men of business: very wealthy, and of great importance. He had made a point always of standing
well in their esteem: in a business point of view, that is strictly in a business point of view.

Answers

Answer: it's the last

Step-by-step explanation:

Question #12: What is the mean absolute deviation of Hailey's science
scores? 70 82 84 94 *

Answers

Answer: 82.5

Explanation:

Exactly how do you find the area? (I already know I need to split the prisms, but how would you do this?)

Answers

Answer:

The simplest (and most commonly used) area calculations are for squares and rectangles. To find the area of a rectangle, multiply its height by its width. For a square you only need to find the length of one of the sides (as each side is the same length) and then multiply this by itself to find the area.

Step-by-step explanation:

Answer:

You know the with and the length and height of all of them so just do math :)

Step-by-step explanation:

Help me if u can if you can it’s fine but plz help me if u can I would really appreciate it

Answers

Answer:

you are right click on 32 °

The difference of 6 and 4, times p

9 divided by c

2 is subtracted from three-fourths of d

Take away 4 from z

If u can express the following ^^

Answers

1.) (6-4)p
2.) 9/c
3.) (3/4)d -2
4.) z-4

brainliest goes to whoever answers the question correctly also if you want more points answer my other questions

Answers

Answer:

B. y = 85x

Step-by-step explanation:

First, find the rate of change of the graph:

Rate of change = change in y/change in x

Using two points (0, 0) and (4, 300),

Rate of change (m) = (300 - 0)/(4 - 0) = 300/4

Rate of change (m) = 75

Compare this with the rate of change of the given equations in the options.

✔️Option A: y = 65x + 100

The rate of change of this equation is 65, which is less than the rate of change of the given graph (75)

✔️Option B: y = 85x

The rate of change of this equation is 85, which is greater than the rate of change of the given graph (75)

✔️Option B: y = 50x + 150

The rate of change of this equation is 50, which is less than the rate of change of the given graph (75)

✅Therefore, the equation that has a greater rate of change than the one shown in the graph is y = 85x

A girl can decorate a stage for a program in 2 1/2 hours, how long will it take 10 girls to decorate it

Answers

Answer:

hours because they will be talking to each other

Step-by-step explanation:

Answer:

15 minutes

Step-by-step explanation:

I put it in minutes. So 150min.

Then do 150÷10

Hope this helps

Brainliest would be appreciated

In a school with 3014 students, a survey was conducted. From a sample of 200 students, 139 said that they prefer to listen to music while they do their classwork and homework.

Estimate the percentage of students at the school that prefer to listen to music while they work.

Answers

Answer:

2,095 students.

Step-by-step explanation:

3014/200 = 15.07 groups of students

15.07 groups x 139 students = 2094.73 students -> rounds to 2095

What is the measure of Zy?
139 yº

Answers

Answer:

y = 41°

Step-by-step explanation:

∡ y and 139° are adjacent angles and sum to 180° , that is

∠ 1 + 139° = 180° ( subtract 139° from both sides )

∠ 1 = 41°

Which set of angles can form a triangle

Answers

Answer:

Any combination of angles the sum of which = 180 degrees.

answer is 2 acute 1 right

A bag contains pens for grading papers. The bag contains 10 black pens and 8 red pens. Mrs. Baxter and Mrs.Ranew are drawing from the bag at random. Find the probability that Mrs. Baxter selects a black pen and then Mrs.ranew selects a red pen.

Answers

Answer:

The final answer is 80/306 (Feel free to simplify it)

Step-by-step explanation:

10/18 x 8/17 = 1/80

Can I have brainliest? It would help me out, if not thanks anyways! Hope this helped and have a nice day!

1/3 (x -10) = -4

x = ?

Answers

Answer:

x = -2

Step-by-step explanation:

Answer:

-2

Answer:

25cm

Step-by-step explanation:

an easy way I do it is I count the side which is 5 then i count the bottom which is 5 also and I multiply the two numbers to get the volume

Jessica had $-14 in her checking account. She did a few chores and made $52.50. She
decided to pay for her and a friend to go to the movies, and each ticket cost $9.50.
How much money does she have left in her checking account?

Answers

Answer:

$19.00

Step-by-step explanation:

She made 52.50.

she had -14.

52.50-14= 38.50

tickets are 9.50

9.50×2= 19.00

hope this helps let me kno if i did somthing wrong!

2. Find the missing side length
of the right triangle below.
25 ft.
24 ft.

Answers

Answer:

1 ft

Step-by-step explanation:

A^2+B^2=C^2

We have A and C

So 24+B^2=25

Subtract 24 from both sides

B^2=1

Square root both sides

B=1

Answer:

7 ft

Step-by-step explanation:

eh don't wana explain but I'm 80% sure that's the answer

A city manager wants
to know if city residents think the recreation center should have extended hours for teenagers. Which sample is likely to
se representative of the population of city residents?
A.) Roll a number cube to select one of the first six names in a list of females in the city, then select every ninth name.
B) Spin a spinner with sections labeled 1 through 5 to select one of the first five names in a list of people living alone in the city, the
select every 4th name.
C) Spin a spinner with section labeled 1 through 5 to select one of the first five names in a list of registered voters in the city, then
select every 9th name
D) Roll a number cube to select one of the first six names in a list of the city residents, then select every 15th name.

Answers

Answer:

A is the answer

Step-by-step explanation:

the gym teachers at springfield middle school randomly surveyed 40 students to find which one of four indoor sports they prefer to play. the results are shown in the table. based on the data which sentence is true? plz help
basketball= 12
volley ball= 15
soccer= 6
dogeball=7
1. more than twice as many students would rather play volleyball than soccer.
2.more than twice as many students would rather play basketball than dodgeball.
3. more students would rather play basketball than soccer and dodgeball combined.
4. more students would rather play volley ball than the other three sports combined

Answers

Answer:

the Answer would be number 1

Step-by-step explanation

1 because in the "answer" is says twice as many students would rather play volleyball than soccer and in soccer there is 6 so 6X6 =12 and volleyball has 15 so that is basically more than soccer.

More than twice as many students would rather play volleyball than soccer is the correct option.

We have given that,

the gym teachers at Springfield middle school randomly surveyed 40 students to find which one of four indoor sports they prefer to play. the results are shown in the table. based on the data which sentence is true.

basketball= 12

volley ball= 15

soccer= 6

dogeball=7

What is a soccer ball?

Soccer ball dimensions can vary by league and purpose. Discover the differences and be sure you use the right ball size for your specific soccer style.

1 because in the answer is say twice as many students would rather play volleyball than soccer and in soccer, there is 6 so 6X6 =12 and volleyball has 15 so that is basically more than soccer.

To learn more about the soccer ball visit:

https://brainly.com/question/2439569

#SPJ2

please help me :))) i really need help

Answers

It should be 14.6 square feet

what is 4 + 78908 + 54732927 - 7 + 45678?

Answers

Answer: the answer is: 54857510

Step-by-step explanation:

What i had just did was i just broke the equation into 2 parts: so i did first (4 + 78908 + 54732927 - 7) which gave me 54811832. Then i did the next part which was adding 45678 in the mix ( 54811832 + 45678 = 54857510) So, the number from which you are left with is 54857510.

((TIP: Next time when you see problems like this, break them down into smaller equations so it will be much easier for you to solve, and its much more quicker and less harsh on your brain rather then just trying to do in all in one shot))

~i hope this has helped you out, have a gr8 day/ night my friend!~ :-)

Select the correct answer from each drop-down menu.
The graphs below show the number of faulty products, y, produced by a company for the first eight months since production started. Both graphs show the same information.

Answers

Answer:

Graph A ,appears to decrease less

Step-by-step explanation:

In the word problem it asked us which graph seem to have "Slight Decrease"means if obeserve the graph it shows graph A.

Alex should use Graph A for the presentation as it shows the number of faulty products as a decrease on the graph

What is Equation of Graph of Polynomials?

Graphs behave differently at various x-intercepts. Sometimes the graph will cross over the x-axis at an intercept. Other times the graph will touch the x-axis and bounce off.

Identify the even and odd multiplicities of the polynomial functions' zeros.

Using end behavior, turning points, intercepts, and the Intermediate Value Theorem, plot the graph of a polynomial function.

The graphs cross or are tangent to the x-axis at these x-values for zeros with even multiplicities. The graphs cross or intersect the x-axis at these x-values for zeros with odd multiplicities

Given data ,

Let graph A shows the product quality with number of faulty products over the period of months

And , let graph B shows the product quality with number of faulty products over the period of months

Now , the line is decreasing in a steady manner in graph A as the number of faulty products is decreasing at a nominal rate

Hence , graph A is best for presentation

To learn more about equation of graph of polynomials click :

https://brainly.com/question/16957172

#SPJ7

Which one of the following weighs least?
Which one of the following weighs least?

2 centigrams

2 grams

2 hectograms

2 kilograms

2 milligrams

Answers

Answer:

2 milligrams

Step-by-step explanation:

kg= 1000g

hectograms = 100g

decagram = 10g

grams = 1g

Decigrams = 100 g

centigrams = 100g

milligrams =1000g

Answer:

2 miligrams is the answer

please help meeee! asap. tia

Answers

Answer:

Step-by-step explanation:

Equations have answers to it's problem. The equal sign (=) would usually tell you if it is or not. Has an equal sign, equation, no equal sign, not an equation.

Good luck :)

The answer is B because an equation is a math statement with an equal sign ;-;

Find the value of x Write the answer as a fraction in simplest form or a decimal rounded to the nearest hundredth.

Answers

Answer:

13.85

Step-by-step explanation:

Find the diagram attached

Using the similarity theorem of a triangle;

GH/FG = FG/EF

x/15 = 36/39

x/15 = 12/13

Cross multiply

13x = 12 * 15

13x = 180

x = 180/13

x = 13.85

Hence the value of x to the nearest hundredth is 13.85

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