Question

34. Report by the Gallup Poll stated that on average a woman visits her physician 5.8 times a year. In a random sample of 20 women the number of doctor visits is obtained as follows: 3 2 1 3 7 2 9 4 6 6 8 0 5 6 4 2 1 3 4 1 (Check yourself: the sample mean is 3.85 and the standard deviation is about 2.52) At α = 0.01 can it be concluded that the actual average number of doctor visits is less than 5.8?

Answer #1

A report by the Gallup Poll found that a woman visits her
doctor, on average, at most 5.8 times each year. A random sample of
20 women results in these yearly visit totals: 3; 2; 1; 3; 7; 2; 9;
4; 6; 6; 8; 0; 5; 6; 4; 2; 1; 3; 4; 1
At the alpha = 0:05 level, can it be concluded that the sample
mean is higher than 5.8 visits per year? Find the p-value and
explain how...

A Gallup poll to survey the top concerns of Americans was
conducted. Suppose that 366366 women and 422422 men were
independently and randomly selected, and that 202202 women and
186186 men chose the state of the economy as their biggest concern.
Can we conclude that the proportion of women ( p1p1 ), choosing the
state of the economy as their biggest concern, exceeds the
proportion of men ( p2p2 )? Use a significance level of
α=0.05α=0.05 for the test.
Step 1...

A Gallup poll to survey the top concerns of Americans was
conducted. Suppose that 713 women and 613 men were independently
and randomly selected, and that 338 women and 244 men chose the
state of the economy as their biggest concern. Can we conclude that
the proportion of women ( p1 ), choosing the state of the economy
as their biggest concern, exceeds the proportion of men ( p2
)? Use a significance level of α=0.1 for the test.
Step 1...

A Gallup poll to survey the top concerns of Americans was
conducted. Suppose that 713 women and 613 men were independently
and randomly selected, and that 338 women and 244 men chose the
state of the economy as their biggest concern. Can we conclude that
the proportion of women ( p1 ), choosing the state of the economy
as their biggest concern, exceeds the proportion of men ( p2
)? Use a significance level of α=0.1 for the test.
Step 1...

Gallup poll consisted of 1012 randomly selected adults who were
asked whether or not cloning of humans should be allowed. 901 of
the adults surveyed said that cloning should not be allowed.
Construct a 98% confidence interval to estimate the true percentage
of all adults who hold this belief. 1. State the Parameter 2. Find
the point estimate 3. Check assumptions 4.Find the critical value
5. Find the margin of error 6. Find the confidence interval
limits

A community health association is interested in estimating the
average number of maternity days women stay in the local hospital.
A random sample is taken of 36 women who had babies in the hospital
during the past year. The following numbers of maternity days each
woman was in the hospital are rounded to the nearest day. 1 3 4 3 2
5 3 1 4 3 4 2 3 5 3 2 4 3 2 4 1 6 3 4...

A community health association is interested in estimating the
average number of maternity days women stay in the local hospital.
A random sample is taken of 36 women who had babies in the hospital
during the past year. The following numbers of maternity days each
woman was in the hospital are rounded to the nearest day.
5
3
4
3
2
5
3
1
4
3
4
2
3
5
3
2
4
3
2
2
1
6
3
4...

In a recent survey, it was stated that Americans watch
television on average four hours per day. Assume that σ =
2. Using your friend from Becker as the sample, conduct a
hypothesis test to determine if the average for students at your
school is lower.
1, 4, 2, 1, 3,5,2, 4, 2, 3.5,6, 3,4, 2, 3, 2,1,4, 5, 2, 3.5, 4,
1, 2, 2.51, 4, 2, 1, 3,5,2, 4, 2, 3.5,6, 3,4, 2,3, 2,1,4, 5, 2,
3.5, 4,1,2,2.5 -...

A random sample of 10 adults and women were chosen to determine
if there is a significant difference in the number of minutes men
and women talk on the phone. The following data was collected,
these numbers are the average numbers of minutes spent on the phone
per day. Alpha = 0.05
1
2
3
4
5
6
7
8
9
10
Men
15
20
22
33
34
38
43
55
72
98
Women
23
43
53
61
74
85...

Case Study #7
Farideh Daei -is a 25-year-old woman from Iran. Her physician
has recommended a consult for physical therapy for low back pain.
During the initial evaluation, Mr. Daei, her husband, answered all
the questions directed to Farideh. When asked to rate her pain on a
scale of one to ten, the husband answered, “I really don’t think
her pain is that bad, you can give her a three.” The wife
compliantly allowed her husband to answer all questions....

ADVERTISEMENT

Get Answers For Free

Most questions answered within 1 hours.

ADVERTISEMENT

asked 2 minutes ago

asked 6 minutes ago

asked 6 minutes ago

asked 9 minutes ago

asked 9 minutes ago

asked 10 minutes ago

asked 10 minutes ago

asked 12 minutes ago

asked 14 minutes ago

asked 15 minutes ago

asked 16 minutes ago

asked 18 minutes ago