Define null hypothesis.

Answers

Answer 1

Answer:

(in a statistical test) the hypothesis that there is no significant difference between specified populations, any observed difference being due to sampling or experimental error.

Step-by-step explanation:


Related Questions

algebra nation section 3- topic 8

Answers

Answer:

POINTSSSS thxx:))

Step-by-step explanation:

Put it in your own words

Answers

There's a seasonal show called the Amazing Race. I am chosen to participate in it, my partner is Fransteria. I am the leader of our team. In this game, we have to chose the best path, we have to calculate the fastest way to victory. A map full of triangles will be given to us for the first path. We will get to know about more details later.

Jamie plays a trivia game. She earns 1 point for each
correct answer and loses 0.25 points for each incorrect
answer. She gets 15 correct answers and 5 incorrect
answers
What is her score for the game?
A 16.25
B 13.75
C. 15
D. 14.25

Answers

Answer:  B. 13.75

First write out the equation you need to solve

1x - 0.25y = total score

Second fill in the known information

1(15) - 0.25(5) = total score

Now solve your equation

15 - 1.25 = total score

13.75 = total score

Her score for the game will be 13.75. Then the correct option is B.

What is the linear system?

A linear system is one in which the parameter in the equation has a degree of one. It might have one, two, or even more variables.

Jamie plays a trivia game.

She earns 1 point for each correct (W) answer and loses 0.25 points for each incorrect (L) answer.

Then the total points is given as

Total point = W – 0.25L

She gets 15 correct answers and 5 incorrect answers.

Then her score for the game will be

Total point = 15 – 0.25 x 5

Total point = 13.75

Then the correct option is B.

More about the linear system link is given below.

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points equal to y = - 1/2x + 5

Answers

Answer:

x= (-10,0)

y= (0,5)

Step-by-step explanation:

Find the x-intercepts.

Tap for more steps...

x-intercept(s):

(-10,0)

y-intercept(s):

(0,5)

Divide 25 1858.
To find the quotient, start by dividing

Answers

Answer:

74.32

Step-by-step explanation:

1,858 divided by 25= 74.32

Matthew mixes 1/2 cup of yellow paint for every 1/5 cup of blue paint to make green paint. how many cups of yellow paint are needed for 1 cup of blue paint.

Answers

Answer: He needs 2 1/2 cups of yellow paint

To evaluate any piecewise function you must look at the domain. true or false ?

Answers

True.................................

To evaluatetheany piecewise function we must look at the domain. Yes it is true.

I’m not good at Spanish but,
Yo esta una decepción
Can Spanish people translate to the ones who don’t understand?

Answers

Answer:

Yo esta una decepcion? Alright, a direct translation would be: I this a deception/disappointment, but for it to make sense it would be either I'm disappointed, or I'm disappointed of her, due to "esta" is to refer a women non dearingly

Step-by-step explanation:

I am a disappointment.

Yo esta = I am

una = a

decepción = disappointment

También puedo suponer que ya soy una decepción para usted.

This can be translated to:

I can also imagine that I'm already a disappointment to you.

Triangle JKL is reflected across x = 0 and then translated 5 units up to create △JʹKʹLʹ. Are the two figures congruent? Explain.

A. No; a reflection changes the orientation of a figure, so the figures are not congruent.
B. No; a translation changes the position of a figure, so the figures are not congruent.
C. Yes; reflections and translations preserve lengths and angle measures, so the figures are congruent.
D. There is not enough information.

Answers

Answer:C

Step-by-step explanation: Measure stay the same when translated

The solution is Option C.

Yes; reflections and translations preserve lengths and angle measures, so the figures are congruent

What are Congruent Triangles?

Transformations change the size or position of shapes. Congruent shapes are identical, but may be reflected, rotated or translated. Scale factors can increase or decrease the size of a shape. Congruent Triangles simply mean the triangles that possess the same size and shape

The three sides are equal (SSS: side, side, side)

Two angles are the same and a corresponding side is the same (ASA: angle, side, angle)

Two sides are equal and the angle between the two sides is equal (SAS: side, angle, side)

A right angle, the hypotenuse and a corresponding side are equal (RHS, right angle, hypotenuse, side)

Given data ,

Let the triangle be represented as Triangle ΔJKL

Now , the triangle JKL is reflected across the line x = 0

So , the triangle is reflected along the y axis

And , when you reflect a point across the y-axis, the y-coordinate remains the same, but the x-coordinate is taken to be the additive inverse. The reflection of point (x, y) across the y-axis is (-x, y).

So , the x coordinates of triangle JKL changes

Now , the triangle is translated 5 units up

So , the values of the y coordinates gets increased by 5 units

And the transformed triangle is ΔJ'K'L'

The transformed triangles retains the shape as well the angle measures

From the congruent theorem of triangles

The three sides are equal (SSS: side, side, side)

Two angles are the same and a corresponding side is the same (ASA: angle, side, angle)

Two sides are equal and the angle between the two sides is equal (SAS: side, angle, side)

So , the triangle ΔJKL ≅ ΔJ'K'L'

Hence , the triangles are congruent and reflections or translations preserve lengths and angle measures

To learn more about congruent triangles click :

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At 4:00 A.M., the outside temperature was –28°F. By 4:00 P.M. that same day, it rose 38 degrees. What was the temperature at 4:00 P.M.?

Answers

Answer:

10°

Step-by-step explanation:

-28 + 38 = 10

10 degrees, the math on this one is you need to add 38 to -28 which comes out to 10

Ms. Shepheard cuts 1/2 of a piece of a construction paper. She uses 1/6 of the piece to make a flower. What fraction of the sheet of paper dose she use to make the flower.

Answers

Answer:

She use 1/12 of the paper

Step-by-step explanation:

Probability of rolling a composite number on a dice and the coin landing on tails

Answer choices are 1/8, 2/3 and 5/6

This is 7th grade math btw

Answers

Answer:

5/6.

Step-by-step explanation:

The only composite numbers on a die are 4 and 6, so the probability of landing on them is 2/6 or 1/3. The probability of landing on tails on a coin is 1/2. Add them together (1/3 + 1/2) and you get the total probability of 5/6.

I hope this helps.

Malika has a credit card balance of $321. Her available credit on this card is $4,679. What is her credit line
on this card?

Answers

Answer: 5,000

Step-by-step explanation:

4679 + 321=5000

If Malika has a credit card balance of $321. Her available credit on this card is $4,679. Then $5000 is her credit line on this card

What is Equation?

Two or more expressions with an Equal sign is called as Equation.

Given,

Malika has a credit card balance of $321

Available credit on this card is $4,679.

We need to find her credit line on credit card

To find this we just need to add $321 and $4,679.

Three hundred twenty one plus four thousand six hundred seventy nine

$321+$4,679.

We get five thousand

$5000

Hence, $5000 is her credit line on this card

To learn more on Equation:

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What does 15% + 14% + 12% =

Answers

Answer:

41%

Step-by-step explanation:

adding percentages is just regular adding so 15 + 14 + 12 = 41

Answer:

0.41

Hope this helped you

how do I solve this​

Answers

Answer:

15 degrees

Step-by-step explanation:

7x - 15 = 90

    +15.   +15

7x = 105

divide both sides by 7

x = 105/7 = 15

PLEASE HELP REALLY QUICK

Jose starts a savings account with $80. At the end of 6 months, the
account has $350. Assuming there is a constant rate, how much did Jose
save per month?
A $270
B $72
C $60
$45

Answers

Answer:

D $45

Step-by-step explanation:

you would take the $350 and divide it by 80 an you get 4.375 than you round that to the nearest 5th

The sum of four and seven times a number is -31. What is the number?

Answers

Answer:

The number is -5

Step-by-step explanation:

Let x be the number

Write it out as an algebraic expression: 7x + 4 = -31Subtract 4 from each side, so it now looks like this: 7x = -35Divide each side by 7 to cancel out the 7 next to x. It should now look like this: x = -5

I hope this helps!

Answer:

The number is -1.107142857142857

Step-by-step explanation:

I just used a calculator

9. f(x) = x2 - 49, g(x) = x + 7

Answers

Answer:

(x^(2)-49)/(x-7)

Step-by-step explanation:

Did it.

slope of y = 7x-100​

Answers

Answer:

The slope equals 7.

Step-by-step explanation:

Following the formula y = mx + b where:

m = slope

x = independent variable

b = y-intercept

our equation looks like:

y= 7x - 100

m = 7

x = x

b = -100

If slope = m and m = 7 then we can conclude that the slope = 7.

Is 8397 divisible by 9

Answers

Answer: yes

Step-by-step explanation:

If the sum of the digits is not divisible by 9, then 8397 is not divisible by 9. 27 is divisible by 9, Therefore, 8397 is divisible by 9 and the answer to the question, "Is 8397 Divisible By 9?" is Yes.

Answer:

Yes

Step-by-step explanation:

please answer I need the answer now, please

Answers

Answer:

The slope is -2, and the y-intercept is 12.

Step-by-step explanation:

Your class collected money to buy turkeys and hams for
the local food shelter. After the collection, your class
had exactly enough money to buy 11 hams and 9
turkeys. If you raised a total of $316, and each turkey
cost $18, how much is one ham?

Answers

Answer: $14.00

Step-by-step explanation:

9 turkeys costed a total amount of  $162.00

We need to subtract that from the total cost, $316.00, to find out how much money was spent on 11 hams.

316 - 162 = 154

So, 11 hams costed 154.

We then need to find the unit rate of 11 turkeys for 154 dollars.

To do that, we must divide 154 ÷ 11

That gives us 14.

Therefore, your answer is: $14.00 per ham.

what’s the answer i need help plssss!!!

Answers

Answer:

wouldent that be 8 x  3 lol????

Step-by-step explanation:

Answer:

follow the steps

Step-by-step explanation:

a²+b²=c²

8²+8²=c²

64+64=c²

find the square root of 128


Question 2
Only students who receive financial aid from the college/university they attend is entitled to take a tax credit.
True
False

Answers

I believe the answer is false.

But, I’m not sure. Sorry¯\_(ツ)_/¯

Write an equation that represents each graph.

Answers

Answer:

3x3

Step-by-step explanation:

I think that it is 3x3 because that is the angle.

9514 1404 393

Answer:

y = -x +3y = x -3y = 3x +1y = -3x -3

Step-by-step explanation:

In each case, the slope can be found by counting the number of vertical grid squares for each horizontal grid square between points where the line crosses grid intersections. The ratio "rise"/"run" is the slope of the line, m.

The y-intercept, b, can be found as the y-value where the line crosses the y-axis.

These values go into the slope-intercept form of the equation for a line to give the equation you want:

  y = mx + b

__

1. Rise is -1 for a run of 1. The y-axis is crossed at 3.

  y = -x +3

__

2. Rise is 1 for a run of 1. The y-axis is crossed at -3.

  y = x -3

__

3. Rise is 3 for a run of 1. The y-axis is crossed at 1.

  y = 3x +1

__

4. Rise is -3 for a run of 1. The y-axis is crossed at -3.

  y = -3x -3

If m2A = 110 degrees and m2B = 35 degrees, find m21.
A)
35 degrees
B)
75 degrees
C)
110 degrees
D)
145 degrees

Answers

Answer:

c

Step-by-step explanation:

i have a degree in mathematics so you can trust this

please answer see the image below

Answers

Answer:

64.8

Step-by-step explanation:

total area = rectangle + semi circle

                = (11 x 5) + (1/2 * π * 2.5²)

                = 55 + 9.8

                = 64.8 sq. units

Answer:

64.8² units. Hope it's help you.

6.6.PS-11
Find the whole.,
155% of what number is 31?
155% of is 31.
(Type a whole number.)
plz help ASAP

Answers

Answer:

20

Step-by-step explanation:

31 ÷ 155% =

31 ÷ (155 ÷ 100) =

(100 × 31) ÷ 155 =

3,100 ÷ 155 =

20

pretty sure it’s 20! lmk if it’s right

Jahaira buys a car for $5,160. Her state charges 7% sales tax, $87
for licence plates, and $30 for safety and emissions fees. How much
will Jahaira owe for these extra charges, NOT INCLUDING the price
of the car?

Answers

Answer:

119.1

Step-by-step explanation:

PLease see the picture below please help me thank you.

Answers

3r +8

combine 4r -r

combine 14 -6

3r + 8

3r+8 is the answer because you add or subtract the numbers with the same letter
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