A recent newspaper article claimed that more people read Magazine A than read Magazine B. To test the claim, a study was conducted by a publishing representative in which newsstand operators were selected at random and asked how many of each magazine were sold that day. The representative will conduct a hypothesis test to test whether the mean number of magazines of type A the operators sell, μAμA, is greater than the mean number of magazines of type B the operators sell, μBμB. What are the correct null and alternative hypotheses for the test?
A. H0:μA−μB=0Ha:μA−μB>0H0:μA−μB=0Ha:μA−μB>0
B. H0:μA−μB<0Ha:μA−μB>0H0:μA−μB<0Ha:μA−μB>0
C. H0:μA−μB=0Ha:μA−μB≠0H0:μA−μB=0Ha:μA−μB≠0
D. H0:x¯A−x¯B=0Ha:x¯A−x¯B>0H0:x¯A−x¯B=0Ha:x¯A−x¯B>0
E. H0:μB−μA=0Ha:μB−μA>0H0:μB−μA=0Ha:μB−μA>0

Answers

Answer 1

Answer:

Option A.

Step-by-step explanation:

The representative will conduct a hypothesis test to test whether the mean number of magazines of type A the operators sell, μAμA, is greater than the mean number of magazines of type B the operators sell, μBμB. What are the correct null and alternative hypotheses for the test?

To verify this, the distribution used is [tex]\mu_{A} - \mu_{B}[/tex]

The null hypothesis is an equality, which means that it is:

[tex]H_{0} = \mu_{A} - \mu_{B} = 0[/tex]

At the alternate hypothesis, we want to test if the mean number of type A is greater than type B, that is, the distribution is positive. So

[tex]H_{A} = \mu_{A} - \mu_{B} > 0[/tex]

So the correct answer is given by option A.


Related Questions

Did the enrollment increase at a faster
rate from 2002 to 2008 or 2008 to 2016?

Answers

Answer:

From 2008 to 2016

Step-by-step explanation:

A box has a mass of 360 g. The box has a volume of 72 cm.3 What is its density?
Use the formula: D = m/v

Answers

Answer:

5

Step-by-step explanation:

360/72=5
D=5g/cm^3
Hope this helps u ✨

PLEASE HELP I WILL GIVE BRAINLIEST!!
Mike and his sister did some laundry at the laundromat. To wash a load costs $2 and to dry a load costs another $2. Mike and his sister washed and dried 4 loads of laundry. They also had to buy 4 packets of detergent for $1 per packet. How much money did Mike and his sister spend to do their laundry?

a) $16

b) $28

c) $12

d) $20

Answers

Answer:

answer is d) $20

Step-by-step explanation:

because 2x4=8 + 2x4=8 = $16 then 4 packets for $1 is $4 16+4= $20

Answer:

D) $20

Step-by-step explanation:

Wash plus dry = $4

$4 times 4 times = $16

$1 for one detergent times the four packets = $4

Total is $20

In degrees, what is the measure of HMP?
will give branliest and Extra Points!

Answers

Answer:

The answer is 68

Step-by-step explanation:

You can find it by seeing 4x-20+x=90 because of the vertical angles and how you can see that it equivalates to 90 degrees.

In ASTU, the measure of ZU=90°, the measure of ZS=16°, and TU = 5.9 feet. Find
the length of ST to the nearest tenth of a foot.

Answers

Answer: 21.4

Step-by-step explanation:

Add the rational expression​

Answers

Add the rational expression

[tex] \sf \large{ \frac{3}{6x {}^{3} } + \frac{4x}{2x}}[/tex]

[tex] \sf \large{ \frac{1}{2x {}^{3} } + 2}[/tex]

[tex]\sf \large \purple{ = \frac{4x {}^{3} + 1 }{2x {}^{3} }}[/tex]

What does the following symbol mean in mathematics? For example, on the pyramid
shown below, what does it mean?

Answers

Answer:

The cursive l stands for slant height. It is the altitude of the triangular side

I need help with this

Answers

Answer:

300 cm²

Step-by-step explanation:

10² is 100

100 x 3 is 300

The answer would be 300

A school holds classes from 8.00am to 2.00pm. For what percent of a 24 hour day does school hold classes?

Answers

Answer:

25%

Step-by-step explanation:

8 am to 2 pm is 6 hours

6 is 25% of 24

Answer:

25%

Step-by-step explanation:

6 four times is 24 and 24 in half is 12 and 12 in half is 6 so you split it up equally you have a percentage of 25%

Someone please help me and stop giving me links

Answers

Answer:

b and c

Step-by-step explanation:

I don't think these are prisms, looks like cuboids or parallelopiped or just 3d structures with rectangles. For these,

Answer:

B & C

Step-by-step explanation:

For A,

Base area(A) = length x breadth = 2m x 5m

Base area(A) = 10 m²

Similarly,

Base area(B) = 2m x 3m = 6m²

Base area(C) = 3m x 2m = 6m²

Base area(D) = 9m x 2m = 18m²

Note that 6m²=6m², B and C have same base area

What is the area of the figure below?
10 cm
3 cm
7 cm
18 cm
A. 82 cm?
B. 86 cm
C. 97 cm
D 102 cm
i’ll mark u as brainliest if you answer this! :))

Answers

The answer is B. 86 cm

Answer:

B. 86 cm long

It is this because it is, don't even try and bring me down bro

What fraction of the floats were not from a sports team? Write in simplest form.

Answers

Answer:

[tex]\frac{2}{3}[/tex]

Step-by-step explanation:

Fraction of the floats that belongs to sports team = [tex]\frac{6}{18}[/tex]

                                                                                  = [tex]\frac{1}{3}[/tex]

Therefore, fraction of floats that were not from a sports team = 1 - fraction of floats that belongs to sports team

= 1 - [tex]\frac{1}{3}[/tex]

= [tex]\frac{2}{3}[/tex]

[tex]\frac{2}{3}[/tex]rd fraction of Parade Float were not from a sports team.

what is the GCF of 20 and 6x^2

Answers

Answer:

2

Step-by-step explanation:

Need help plz and thank u

Answers

Answer:

94 friends

Step-by-step explanation:

25/100 × 376

376 ÷ 100 = 3.76

3.76 × 25 = 94

The melting temperature of tin is about 231˚ C and the melting temperature for oxygen is about -218˚ C. What is the difference in the melting temperatures for tin and oxygen?

a.144
b.13

Answers

Answer:

[tex]D = 512^\circ[/tex]

Step-by-step explanation:

Given

[tex]Tin=231^\circ[/tex]

[tex]Oxygen=-218^\circ[/tex]

Required

The difference in their melting points

This is calculated as:

[tex]D = |Oxygen - Tin|[/tex]

[tex]D = |-281^\circ - 231^\circ|[/tex]

[tex]D = |-512^\circ|[/tex]

[tex]D = 512^\circ[/tex]

The difference is 512 degrees

Given the following table, determine the missing value.
a. 1.15
C 15
b. 115
d. .15

Answers

Answer:

it's c because it's the missing value

The Answer is C because it’s the only thing missing !

Can someone answer and explain ILL MARK BRAINLIEST

Answers

Answer:

x=1

y=-2

Step-by-step explanation:

2x-3y=8

4x+3y=-2

When we add the two equations, the y’s cancel out and we’re left with

6x=6

x=1

Now that we know x=1, we put it back in one of the equations to find y.

2(1)-3y=8

-3y=6

y=-2

The following question has two parts. First, answer part A. Then, answer part B.

Gabriel's father has a garden in the back yard. The dimensions of the garden are shown here.

A green rectangle is shown. The width is labeled as 2 and two-thirds feet. The length is labeled as 7 and three-fourths feet.

Part A
Calculate the area of the garden. Show at least one step before you show your solution.



Part B
You found the area of the garden in Part A. Explain briefly, without doing any calculations, how you would find
5
6
of this area

i will give brainlyest if right and there are two parts part a and part b

Answers

Answer:

Step-by-step explanation:answer is 237

Rezolva cerintele. A)masoara si noteaza lungimea tuturor segmentelor formate B) completeaza relatiile de mai jos. C)care dintre relatiile date este cea corecta? D)fixează pe AD un punct o,astfel încât AO=AD+OD

Answers

Can you put it in English? Then I’ll be more than happy to help you out

a girl is three years older than his brother. the product of their ages is 54, find their ages​

Answers

Answer:

The sister is 25.5. The brother is 28.5.

Step-by-step explanation:

25.5 + 28.5 = 54.

The boy's age is 9.

The girl's age is 12.

What is an expression?

An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.

Example: 2 + 3x + 4y = 7 is an expression.

We have,

Boy's age = x

Girl's age:

y = x + 3

Now,

x (x + 3) = 54

x² + 3x - 54 = 0

x² + (9 - 6) - 54 = 0

x² + 9x - 6x - 54 = 0

x(x + 9) - 6(x + 9) = 0

x - 6 = 0

x = 6

x + 9 = 0

x = -9 ( cannot be negative)

Now,

x = 9

Boy's age = 9

Girl's age = 9 + 3 = 12

Thus,

The boy's age and the girl's ages are 9 and 12.

Learn more about expressions here:

https://brainly.com/question/3118662

#SPJ2







Jose is buying fencing to surround his garden. If his garden has a perimeter of 24 yards, and fencing costs $3.00 a foot, how much money will he need for the fencing?

Answers

Answer:

216 dollars

Step-by-step explanation:

24yd*3= 72 feet*3= 216 dollars

if my answer helps please mark as brainliest.

Answer:

72$

Step-by-step explanation:

24*3.00

Solve the proportion.
20/13 = 60/d
d=

Answers

Answer:

[tex]d = 39[/tex]

Step-by-step explanation:

1) Multiply both sides by d.

[tex] \frac{20}{13} d = 60[/tex]

2) Simplify 20/13d to 20d/13.

[tex] \frac{20d}{13} = 60[/tex]

3) Multiply both sides by 13.

[tex]20d = 60 \times 13[/tex]

4) Simplify 60 × 13 to 780.

[tex]20d = 780[/tex]

5) Divide both sides by 20.

[tex]d = \frac{780}{20} [/tex]

6) Simplify 780/20 to 39.

[tex]d = 39[/tex]

Therefor, the answer is d = 39.

Please help I give brainliest

Answers

Answer:

Angle T

Step-by-step explanation:

Joshua sells a pack of pens for $3.15, which is 5 percent more than he pays for them. Which equation will help find x, the amount he pays for a pack of pens? How many solutions will this equation have?

Answers

Answer:

you 3.15+5 es igual a 8 .15

Step-by-step explanation:

espero que te sirva

Jeff's shipping service charges $8 for the first package and $2 for each additional package. Use a linear equation to determine the cost to ship 8 packages.

Answers

Answer: 22

Step-by-step explanation:

The linear equation to determine the cost to ship 8 packages is x=22.

Given that, Jeff's shipping service charges $8 for the first package and $2 for each additional package.

What is a linear equation?

In mathematics, an equation is a formula that expresses the equality of two expressions, by connecting them with the equals sign =.

A linear equation is an equation in which the highest power of the variable is always 1. It is also known as a one-degree equation. The standard form linear equation is Ax+B=0.

Let the total charge be $x.

Now, x=8+(8-1)2

⇒x=8+14

⇒x=22

Therefore, the linear equation to determine the cost to ship 8 packages is x=22.

To learn more about the linear equation visit:

https://brainly.com/question/27664510.

#SPJ2

find the rule ans the graph of the function whose graph can be obtained by performing the translation 4 units peft and 5 units down on the parent function f(x)=ln(x)


a. f(x)=ln(x+4)-5
b. f(x)=(x-5)-4
c. f(x)=ln(x-4)-5
d. f(x)=ln(x+5)-4​

Answers

a. f(x)=ln(x+4)-5
If it shifts to the left side then in braces put a (+) sign and if it shifts to the right then in braces put a (-) sign. If it goes up it’s positive and if it goes down it’s negative

Buy any mistakes in the renaming of the fractions below show the correct remaining 9 / 4 = 9 / 12 2 / 3 + 6 / 12

Answers

Step-by-step explanation:

3/4=9/12 CORRECT

2/3=6/12 FALSE

Step-by-step explanation:

What is done to top of the fraction must be done to the bottom as well in order for the renaming to be true.

3*3 = 9

4*3 = 12

Therefore proven to be true

However,

2*3 = 6

but 3*3 = 9

The second fractions is renamed incorrectly and should be either 2/4=6/12 or 2/3=2/9

Hope this helps!

I don't know pls pls plsssssss help me I don't understand!!!!‍♂️

Answers

The answer will be 200

4 2/3 x 13 literally dont want to do the work​

Answers

Answer:

60 2/3

Step-by-step explanation:

what is a first step to solve 6 + 7?​

Answers

The first step to solve 6+7 is add
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