90 POINTS The difference of sample means of two populations is 55.4, and the standard deviation of the difference of sample means is 28.1. Which
statement is true if we are testing the null hypothesis at the 95% confidence level?
OA. The difference of the two means is significant, so the null hypothesis must be rejected.
OB The difference of the two means is significant, so the null hypothesis must be accepted.
Ос. The difference of the two means is not significant, so the null hypothesis must be rejected.
OD. The difference of the two means is not significant, so the null hypothesis must be accepted.

Answers

Answer 1

Answer:

answer is D

The difference of the two means is not significant, so the null hypothesis must be accepted.


Related Questions

A cylinder and a cone have the same volume. The cylinder has a radius of 2 inches and a height of 3
inches. The cone has a radius of 3 inches. What is the height of the cone?
Show your work.
Plz help

Answers

Answer: 4 in

Step-by-step explanation:

The volume of the cylinder is

[tex]V=(\pi)(2^{2})(3)=12\pi[/tex]

If we let the height of the cone h, the volume of the cone is

[tex]V=\frac{1}{3}(\pi)(3^{2})(h)=3\pi h[/tex]

Setting these volumes equal,

[tex]12\pi=3\pi h\\\\12=3h\\\\h=\boxed{4 \text{ in}}[/tex]

Which is the solution to the equation 3/4 (3x + 9) = 6

a. -1/3
b. 12 1/3
c. no solution
d. infinite solutions

Answers

answer is A
if u need me to write out the work for it lemme know
The answer is a -1/3

Help! Solve for the value of x.

Answers

Answer:

x=6 degrees

Step-by-step explanation:

I know that 31+(10x-1)=90. Then I have to subtract 31 from 90 to get 10x -1.

That's 59. I solve for x in the equation 59=10x-1.

That is the same thing as 60=10x, which is also the same as 6=x.

To the nearest tenth, what is the length of QR

Answers

Answer:

|QR| = 17.6

Step-by-step explanation:

To answer this we need to show that the triangles are similar or to assume that they are similar.

Note the following:

1.  The ratio of the longest sides is 12.5 to 25.0, or 1/2;

2.  The ratio of the shortest sides is 5.2 to 10.4, or 1/2

Therefore the ratio of the longer legs is 8.8 to QR, also equal to 1/2

 8.8        1

-------- = -----

  QR       2

Cross-multiplying, we get |QR| = 17.6

Answer:

[tex] \displaystyle B )\overline{ \text{QR }}= 17.6 cm[/tex]

Step-by-step explanation:

we have two similar triangles

we want to figure out the measure of QR

remember that,

the ratio of the corresponding sides of two similar triangles is equal

thus,

[tex] \displaystyle \frac{8 .8}{QR} = \frac{5.2}{10.4} [/tex]

cross multiplication:

[tex] \displaystyle5.2 QR = 91.52[/tex]

divide both sides by 5.2:

[tex] \displaystyle \frac{5.2 QR }{5.2}= \frac{ 9 1.52}{5.2}[/tex]

simplify division:

[tex] \displaystyle QR = 17.6 cm[/tex]

hence, our answer is B

6cm, 15cm, 6cm does it make a triangle

Answers

Answer:

Yes

Step-by-step explanation:

Answer:

yes you can make an isosceles triangle

Find mGM if KP = PL and GH = 36 ft.​

Answers

Circle geometry are made up of lines and angles. The measure of the angle arcGM is 90degrees

Circle geometry

Circle geometry are made up of lines and angles

From the given diagram, the sum of angles on the straight line GKH is 180 degrees

arcGM + arcMN = 180 degrees

Given that arcMN = 90 degrees, hence;

arcGm = 180 - 90
arcGM = 90 degrees

Hence the measure of the angle arcGM is 90degrees

Learn more on geometry here:https://brainly.com/question/19241268

#SPJ2

Answer:

mGM is 77 degrees

Step-by-step explanation:

Can someone please help me ?
ill mark you as brainliest if its correct kk.
no absurd answers thank you.

Answers

Answer:

72000 cm

Step-by-step explanation:

Answer: Woo, that's a hard one, but it's 72,000.

Use the standard volume formula and you'll be chill.

JUST PLS HELP MEEE v_v

Answers

Answer:

81.64

Step-by-step explanation:

I think this us basically asking for it's circumference, therefore;

C = dπ

C = 26π

C = 81.64

Hope this helps!

Why is Armin so precious?

Answers

I know right... Like ugh

Answer:

bc hes a babyyyyy <3333

Step-by-step explanation:

Section A - Cla
Let's tell and write the answers as quickly as possi
a) Natural numbers less than 10 are
b) Whole numbers less than 10 are
c) The least and the greatest natural numbers are
d) The least and the greatest whole numbers are
e) Are all natural numbers whole numbers?
f) Are all whole numbers natural numbers?
g) Is the sum of 5 and 4 a natural number?
h) Is the difference of 5 and 5 a natural number?
i) Is the difference of 5 and 5 a whole number?

Answers

I can’t see the link but if you resend it I might be able to help

2-3 (8.5A) Hikaru is going to make x pies, he will put 3 pounds of berries in each one, which equation can be used to find b, the total number of pounds
of berries he will put in the pies
A
C b=x+3
5
8
b=x+3
35
b = x - 3
5
B
D
5
b = 3

Answers

Answer:

D

Step-by-step explanation:

the answer is d because it's the 3 and 5/8ths per pie this it is multiplied by x.

kim is completing a 40 mile bicycle race she completed 65% of the race how many miles are left?

Answers

Answer:

all you need to so is multiply 40 by .65 then you will get your answer of 26 miles left

Step-by-step explanation:

A cone has a diameter of 12 meters and height of 2 meters is the volume of the cone in terms of π?

Answers

Answer:

75.4 meters³

Step-by-step explanation:

ASAP
-WILL MARK BRIANIST

Answers

the answer to the problem is 48.

Solve the equation below for x.

9(x - 5) = 4x - 5

Answers

Answer: look at the picture

Step-by-step explanation: Hope this help :D

Arun walked the 6 2/3 kilometre the first day, 5 5/6 kilometre the second day ,and 5 1/3 km the third day .how much did he walk in all ?​

Answers

Answer:

17 5/6 is the answer.

Step-by-step explanation:

6+5+5=16 + 2/3+5/6+1/3

2/3=4/6

1/3=2/6

2+4+5=11/6=1 5/6

1 5/6+ 16=17 5/6

I did this stuff in like 4th grade


A 6 kg rock is dropped off a 10 m cliff and hits the ground with a velocity of 12.5 m/s. How much work is done by air resistance on the rock
a:119j
b:588j
c:100j
d:196j

Answers

196j is the answer to the problem

What is the value x of 4×+67=143

Answers

Answer: The answer is 19. Explanation: Subtract 67 on both sides. You then get 4x = 76. Divide 4 on both sides, x=19.

2. Aki has a 2 1/4
metre length of copper
piping.
a) He uses2/3 of it for a job.
What length of pipe is left?
b) He uses 1/8of a metre from the pipe
left for another job, how much of the
original is left?

Answers

Answer:

a)3/4

b)5/8

Step-by-step explanation:

a)2 1/4x (1-2/3)=9/4 x1/3=3/4

b)3/4-1/8=6/8-1/8=5/8

describe the relationship between the zeros of the quadratic function and linear factors of the expression

Answers

Answer:

F(x) represents the zeros of the given quadratic function. i.e. the linear factors represents zero when we resolve the expression

Step-by-step explanation:

Describing the relationship between the zeros of the quadratic function and the linear factors of the expression using an example as shown below

lets describe this using the example below :

quadratic expression  : F(x) = ax^2 + bx + c

let the linear factors of  F( x ) = 0

F(x) represents the zeros of the given quadratic function above i.e. the linear factors represents zero when we resolve the expression

PLEASE HELP WITH THIS

Answers

Answer:

A = 1/2 x b x h

A = 1/2 x bh

A = 1/2bh

5 athletes are in a 100k race. How many different ways can they finish based on their order.

Answers

Answer:

It's 120 different ways I think

Step-by-step explanation:

Someone help me out with this

Answers

Answer:

4x = 20

x = 5

Step-by-step explanation:

Have a nice day!

which equivalent expression will be generated by applying the distributive property and combining like terms in the expression 11+4(x + 2y+4)
A. 4x + 2y + 27
B. 4x + 8y + 11
C. 4x + 8y + 27
D. 4x + 8y + 10

Answers

Answer:

None of these are right

Step-by-step explanation:

None of them are right because it is 18 not 27 or 10 or 11

Answer:

c.

Step-by-step explanation:

11+4(x + 2y+4)

11+4x+8y+16

combine 11 and 16

4x+8y+27

Match each graph to the corresponding linear equation. help plzzzz i hate math

Answers

ANSWER:

GRAPH A: Equation 4

GRAPH B: Equation 3

GRAPH C: Equation 2

GRAPH D: Equation 1

You and your family went to Texas Roadhouse for dinner. Your check was $89.25. If you left the waitstaff 20%, how much was your total bill?

Answers

Answer:

the answer is 107.4

More info

20 percent off

You will pay $71.4 for a item with original price of $89.25 when discounted 20%. In this example, if you buy an item at $89.25 with 20% discount, you will pay 89.25 - 17.85 = 71.4 dollars.

brainliest pls

Step-by-step explanation:

A 36-foot guy wire is attached to a utility pole to provide support for the pole. The wire forms a 60° angle with the ground. How high up the pole is the wire attached? Write your answer in simplest form. The wire is attached to the pole feet above the ground. ​

Answers

Answer:

20 ft is where it's attached

Find and interpret the range of the data.
The range is___. The prices vary by no more than ___ $

Answers

Answer:

bro i have that too and i need help bro

Step-by-step explanation:

(x+16)* x* what is x?

Answers

Answer:

i think x= 0,-15

Step-by-step explanation:

i hope this helps

Function h is the sum of functions fand g. AX) = 13x - 7 g(x) = 2x + 6 Which equation defines function h?

Α. h(x) = 26X – 42

B. h(x) = 15X – 1

C. h(x) = 26x2 - 42

D. h(x) = 15x2 - 1​

Answers

Answer:

Answer would be B.

just add 13x-7 to 2x+6

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