You wish to test the following claim (Ha) at a significance level of a = 0.10. For the context of this problem, µa = µ2 – 41 where the first data set represents a pre-test and the second data set represents a post-test. Ho: Ha = 0 H:Pa < 0 You believe the population of difference scores is normally distributed, but you do not know the standard deviation. You obtain pre-test and post-test samples for n = 39 subjects. The average difference (post - pre) is d = - 8.5 with a standard deviation of the differences of sa = 24.1. What is the test statistic for this sample? (Report answer accurate to three decimal places.) test statistic = What is the p-value for this sample? (Report answer accurate to four decimal places.) p-value = The p-value is. O less than (or equal to) a O greater than a 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. 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 Dost-test from pre-test is less than0
You wish to test the following claim (Ha) at a significance level of a = 0.10. For the context of this problem, µa = µ2 – 41 where the first data set represents a pre-test and the second data set represents a post-test. Ho: Ha = 0 H:Pa < 0 You believe the population of difference scores is normally distributed, but you do not know the standard deviation. You obtain pre-test and post-test samples for n = 39 subjects. The average difference (post - pre) is d = - 8.5 with a standard deviation of the differences of sa = 24.1. What is the test statistic for this sample? (Report answer accurate to three decimal places.) test statistic = What is the p-value for this sample? (Report answer accurate to four decimal places.) p-value = The p-value is. O less than (or equal to) a O greater than a 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. 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 Dost-test from pre-test is less than0
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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Question
Transcribed Image Text:You wish to test the following claim (Ha) at a significance level of a = 0.10. For the context of this
problem, Ha = p2 – H1 where the first data set represents a pre-test and the second data set
represents a post-test.
H.: Ha = 0
Ha:Ha < 0
You believe the population of difference scores is normally distributed, but you do not know the
standard deviation. You obtain pre-test and post-test samples for n = 39 subjects. The average
difference (post - pre) is d = - 8.5 with a standard deviation of the differences of sa = 24.1.
What is the test statistic for this sample? (Report answer accurate to three decimal places.)
test statistic =
What is the p-value for this sample? (Report answer accurate to four decimal places.)
p-value =
The p-value is..
O less than (or equal to) a
O greater than a
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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