A report by the Gallup Poll stated that on average a woman visits her physician 5.8 times a year. A researcher randomly selects 20 women and obtained onto the data below.
A report by the Gallup Poll stated that on average a woman visits her physician 5.8 times a year. A researcher randomly selects 20 women and obtained onto the data below.
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ISBN:9780134753119
Author:Sheldon Ross
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A report by the Gallup Poll stated that on average a woman visits her physician 5.8 times a year. A researcher randomly selects 20 women and obtained onto the data below.
![A report by the Gallup Poll stated that on average a woman visits her physician 5.8 times a
year. A researcher randomly selects 20 women and obtained the data below.
1
3
7
2
9.
4.
6.
6.
8
6.
4
2
1
1
At a
0.05, can it be concluded that the average is still 5.8 visits per year?
a) Based on reading the problem, how do we know we are working with a hypotheses test (
Ho and H1)? This question has two possible answers.
O Asks us to find (estimate) the % confidence interval of the population (true) mean.
O Asks us to find (estimate) the % confidence interval of the population (true) proportion.
Va is provided.
V Asks if there is evidence or can we conclude something.
O Asks us to find the sample size (how many or how large).
Ho = P
5.8
Claim
H1 =
Not the claim
5.8
b) Please select the correct normal distribution based on our H1?](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Faa466c24-bbae-451a-a078-10dcd226e22a%2F78fe4019-c73a-403c-bc4e-5137b11317e6%2Fq7f6il_processed.jpeg&w=3840&q=75)
Transcribed Image Text:A report by the Gallup Poll stated that on average a woman visits her physician 5.8 times a
year. A researcher randomly selects 20 women and obtained the data below.
1
3
7
2
9.
4.
6.
6.
8
6.
4
2
1
1
At a
0.05, can it be concluded that the average is still 5.8 visits per year?
a) Based on reading the problem, how do we know we are working with a hypotheses test (
Ho and H1)? This question has two possible answers.
O Asks us to find (estimate) the % confidence interval of the population (true) mean.
O Asks us to find (estimate) the % confidence interval of the population (true) proportion.
Va is provided.
V Asks if there is evidence or can we conclude something.
O Asks us to find the sample size (how many or how large).
Ho = P
5.8
Claim
H1 =
Not the claim
5.8
b) Please select the correct normal distribution based on our H1?
![ply ...
c) To find our Critical Value(s) (CV), will we use invNorm(), invT()?
invT()
d) Please explain the reason for the correct answer for step c.
The population standard deviation is not given
CV, = invT
Enter an integer or decimal number [more..]
CV2 = invT
Round to Two Decimal Places
CV,
CV2 =
f) What formula will we use for the test value?
(P1 - P2) – (P1 – Pr)
Oz =
nu](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Faa466c24-bbae-451a-a078-10dcd226e22a%2F78fe4019-c73a-403c-bc4e-5137b11317e6%2F7wnv598_processed.jpeg&w=3840&q=75)
Transcribed Image Text:ply ...
c) To find our Critical Value(s) (CV), will we use invNorm(), invT()?
invT()
d) Please explain the reason for the correct answer for step c.
The population standard deviation is not given
CV, = invT
Enter an integer or decimal number [more..]
CV2 = invT
Round to Two Decimal Places
CV,
CV2 =
f) What formula will we use for the test value?
(P1 - P2) – (P1 – Pr)
Oz =
nu
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