Round answers to 3 decimal places. A doctor wants to test the effects of a new...
Round answers to 3 decimal places.
A doctor wants to test the effects of a new medicine on the length
of recovery time from COVID-19. The doctor administers the medicine
to 81 patients and finds those patients recover in an average of
5.7 days, with a sample standard deviation of 1.1 days. Your friend
believes that a tonic created in the bathtub will also help people
recover from COVID-19. Your friend administers the tonic to 63
people and finds that those people recover in an average of 4.5
days, with a sample standard deviation of 2.1 days.
Create a 96% confidence interval for the difference between the
doctor's medicine and your friend's tonic. (Use medicine -
tonic)
(_______,_______)
Homework Answers
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Round answers to 3 decimal places.
A doctor wants to test the effects of a new...
A. B. 2. Identify the test statistic. (Round to two decimal places as needed.) 3. Use...
A.
B.
2. Identify the test statistic. (Round to two decimal places as
needed.)
3. Use technology to identify the P-value. (Round to three
decimal places as needed.)
4. What is the conclusion for this hypothesis test?
A. Fail to reject H 0. There is insufficient evidence to support
the claim that the treatment group has errors that vary
significantly more than the errors of the placebo group.
B. Reject H 0. There is insufficient evidence to support the claim...
please tell me if its a z test ke t test and why it is :)...
please tell me if its a z test ke t test and why it is :)
thanks!
CHECK ANSWERS! You should use a Z test because of the large sample size 30 < and we know the mean and the standard deviation. 6. The Graded Naming Test (GNT) requires respondents to name objects in a set of 30 black-and-white drawings. The test is often used to detect brain damage in the UK. The test begins with easy words like kangaroo,...
(c)What is the test statistic? Give your answer to 3 decimal places. 5.971 (d)The p-value =...
(c)What is the test statistic? Give your answer to 3 decimal places. 5.971 (d)The p-value = 0.005. Which of the following is an appropriate conclusion? The data provides very strong statistical evidence that the average SENS reading after antihypertensive treatment is lower than the average SENS reading before antihypertensive treatment. The data does not provide statistical evidence that the the average SENS reading after antihypertensive treatment is lower than the average SENS reading before antihypertensive treatment. The data provides very...
photos for each question are all in a row (1 point) In the following questions, use...
photos for each question are all in a row
(1 point) In the following questions, use the normal distribution to find a confidence interval for a difference in proportions pu - P2 given the relevant sample results. Give the best point estimate for p. - P2, the margin of error, and the confidence interval. Assume the results come from random samples. Give your answers to 4 decimal places. 300. Use 1. A 80% interval for pı - P2 given that...
STA2221 examples on CI & Testing of Hypothesis Name MULTIPLE CHOICE. Choose the one alternative that...
STA2221 examples on CI & Testing of Hypothesis Name MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answer the question Provide an appropriate response. 1) Find the critical value,te for 0.99 and n-10. A) 3.250 B) 3.169 1.833 D) 2.262 2) Find the critical value to forc=0.95 and n=16. A) 2.947 B) 2.602 2120 D) 2.131 3) Find the value of E, the margin of error, for A) 1.69 B) 0.42 0.99, n=16 and s=2.6. C)...
A.
B.
2. Identify the test statistic. (Round to two decimal places as
needed.)
3. Use technology to identify the P-value. (Round to three
decimal places as needed.)
4. What is the conclusion for this hypothesis test?
A. Fail to reject H 0. There is insufficient evidence to support
the claim that the treatment group has errors that vary
significantly more than the errors of the placebo group.
B. Reject H 0. There is insufficient evidence to support the claim...
please tell me if its a z test ke t test and why it is :)
thanks!
CHECK ANSWERS! You should use a Z test because of the large sample size 30 < and we know the mean and the standard deviation. 6. The Graded Naming Test (GNT) requires respondents to name objects in a set of 30 black-and-white drawings. The test is often used to detect brain damage in the UK. The test begins with easy words like kangaroo,...
(c)What is the test statistic? Give your answer to 3 decimal places. 5.971 (d)The p-value = 0.005. Which of the following is an appropriate conclusion? The data provides very strong statistical evidence that the average SENS reading after antihypertensive treatment is lower than the average SENS reading before antihypertensive treatment. The data does not provide statistical evidence that the the average SENS reading after antihypertensive treatment is lower than the average SENS reading before antihypertensive treatment. The data provides very...
photos for each question are all in a row
(1 point) In the following questions, use the normal distribution to find a confidence interval for a difference in proportions pu - P2 given the relevant sample results. Give the best point estimate for p. - P2, the margin of error, and the confidence interval. Assume the results come from random samples. Give your answers to 4 decimal places. 300. Use 1. A 80% interval for pı - P2 given that...
STA2221 examples on CI & Testing of Hypothesis Name MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answer the question Provide an appropriate response. 1) Find the critical value,te for 0.99 and n-10. A) 3.250 B) 3.169 1.833 D) 2.262 2) Find the critical value to forc=0.95 and n=16. A) 2.947 B) 2.602 2120 D) 2.131 3) Find the value of E, the margin of error, for A) 1.69 B) 0.42 0.99, n=16 and s=2.6. C)...
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