11.06.2022

A large poll showed that 42%, percent of adults approved of their nation's prime minister. Margot wants to test if it is now lower, so she takes a random sample of 1,000 adults in that nation and finds that 390—or 39% percent of those sampled—approved of the prime minister. Let p represent the proportion of adults in this nation who approve of the prime minister.

Which of the following is an appropriate set of hypotheses for her significance test?

Choose 1

(Choice A)
A
\begin{aligned} &H_0: p = 0.39 \\ &H_\text{a}: p < 0.39 \end{aligned}


H
0

:p=0.39
H
a

:p<0.39


(Choice B)
B
\begin{aligned} &H_0: p = 0.39 \\ &H_\text{a}: p < 0.42 \end{aligned}


H
0

:p=0.39
H
a

:p<0.42


(Choice C)
C
\begin{aligned} &H_0: p = 0.42 \\ &H_\text{a}: p < 0.39 \end{aligned}


H
0

:p=0.42
H
a

:p<0.39


(Choice D)
D
\begin{aligned} &H_0: p = 0.42 \\ &H_\text{a}: p < 0.42 \end{aligned}


H
0

:p=0.42
H
a

:p<0.42

. 0

Step-by-step answer

09.07.2023, solved by verified expert
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According to the situation described, the appropriate set of hypotheses for her significance test is given by:

A large poll showed that 42%, percent of adults, №18010206, 11.06.2022 14:02.

A large poll showed that 42%, percent of adults, №18010206, 11.06.2022 14:02.

What are the hypothesis tested?

At the null hypothesis, it is tested if the proportion is still of 42%, that is:

A large poll showed that 42%, percent of adults, №18010206, 11.06.2022 14:02.

At the alternative hypothesis, it is tested if the proportion is now lower, that is:

A large poll showed that 42%, percent of adults, №18010206, 11.06.2022 14:02.

Hence, the the appropriate set of hypotheses for her significance test is given by:

A large poll showed that 42%, percent of adults, №18010206, 11.06.2022 14:02.

A large poll showed that 42%, percent of adults, №18010206, 11.06.2022 14:02.

More can be learned about an hypothesis test at

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Mathematics
Step-by-step answer
P Answered by Master

According to the situation described, the appropriate set of hypotheses for her significance test is given by:

H_0: p = 0.42.

H_1: p < 0.42.

What are the hypothesis tested?

At the null hypothesis, it is tested if the proportion is still of 42%, that is:

H_0: p = 0.42.

At the alternative hypothesis, it is tested if the proportion is now lower, that is:

H_1: p < 0.42.

Hence, the the appropriate set of hypotheses for her significance test is given by:

H_0: p = 0.42.

H_1: p < 0.42.

More can be learned about an hypothesis test at

Mathematics
Step-by-step answer
P Answered by PhD

The solution is in the following image

The solution is in the following image
Mathematics
Step-by-step answer
P Answered by PhD

y=2x+15

where y=Value of coin

x=Age in years

Value of coin after 19 years=2*19+15

=$53

Therefore, Value after 19 years=$53

Mathematics
Step-by-step answer
P Answered by PhD
The answer is in the image 

The answer is in the image 

Mathematics
Step-by-step answer
P Answered by PhD

The answer is in the image 

The answer is in the image 
Mathematics
Step-by-step answer
P Answered by PhD

The wood before starting =12 feet

Left wood=6 feet

Wood used till now=12-6=6 feet

Picture frame built till now= 6/(3/4)

=8 pieces

Therefore, till now 8 pieces have been made.

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