You wish to test the following claim (H) at a significance level of a = 0.10. For the context of this problem, µd is the true mean difference in scores on pre-test and post-test (post-test - pre-test). Н.: ра — 0 0 > Prd :"H You believe the population of difference in scores is normally distributed, but you do not know the standard deviation. You obtain pre-test and post-test samples for n = 23 subjects. The average difference (post - pre) is d = – 17.7 with a standard deviation of the differences of sd = 44.6. What is the test statistic for this sample? (Report answer accurate to 4 decimal places.) test statistic = What is the p-value for this test? (Report answer accurate to 4 decimal places.) p-value = The test statistic is... O in the rejection region O not in the rejection region This test statistic leads to a decision to... O reject the null O accept the null O fail to reject the null As such, the final conclusion is that... O There is sufficient evidence to warrant rejection of the claim that the mean difference of post-test from pre-test is less than 0. O There is not sufficient evidence to warrant rejection of the claim that the mean difference of post- test from pre-test is less than 0. O The sample data support the claim that the mean difference of post-test from pre-test is less than 0. O There is not sufficient sample evidence to support the claim that the mean difference of post-test from pre-test is less than 0.
You wish to test the following claim (H) at a significance level of a = 0.10. For the context of this problem, µd is the true mean difference in scores on pre-test and post-test (post-test - pre-test). Н.: ра — 0 0 > Prd :"H You believe the population of difference in scores is normally distributed, but you do not know the standard deviation. You obtain pre-test and post-test samples for n = 23 subjects. The average difference (post - pre) is d = – 17.7 with a standard deviation of the differences of sd = 44.6. What is the test statistic for this sample? (Report answer accurate to 4 decimal places.) test statistic = What is the p-value for this test? (Report answer accurate to 4 decimal places.) p-value = The test statistic is... O in the rejection region O not in the rejection region This test statistic leads to a decision to... O reject the null O accept the null O fail to reject the null As such, the final conclusion is that... O There is sufficient evidence to warrant rejection of the claim that the mean difference of post-test from pre-test is less than 0. O There is not sufficient evidence to warrant rejection of the claim that the mean difference of post- test from pre-test is less than 0. O The sample data support the claim that the mean difference of post-test from pre-test is less than 0. O There is not sufficient sample evidence to support the claim that the mean difference of post-test from pre-test is less than 0.
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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Transcribed Image Text:You wish to test the following claim (H) at a significance level of a = 0.10. For the context of this
problem, ud is the true mean difference in scores on pre-test and post-test (post-test - pre-test).
Но: pа — 0
0 > Prl :"H
You believe the population of difference in scores is normally distributed, but you do not know the
standard deviation. You obtain pre-test and post-test samples for n = 23 subjects. The average difference
(post - pre) is īd =
17.7 with a standard deviation of the differences of sd = 44.6.
What is the test statistic for this sample? (Report answer accurate to 4 decimal places.)
test statistic =
What is the p-value for this test? (Report answer accurate to 4 decimal places.)
p-value =
The test statistic is...
O in the rejection region
O not in the rejection region
This test statistic leads to a decision to...
O reject the null
O accept the null
O fail to reject the null
As such, the final conclusion is that...
O There is sufficient evidence to warrant rejection of the claim that the mean difference of post-test
from pre-test is less than 0.
O There is not sufficient evidence to warrant rejection of the claim that the mean difference of post-
test from pre-test is less than 0.
O The sample data support the claim that the mean difference of post-test from pre-test is less than 0.
O There is not sufficient sample evidence to support the claim that the mean difference of post-test
from pre-test is less than 0.
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