You wish to test the following claim (H1) at a significance level of a = 0.02. For the context of this problem, Hd = 42-41 where the first data set represents a pre-test and the second data set represents a post-test. H.: Ha = 0 H1: 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 pre) is d = - 2.7 with a standard deviation of the differences of sd 41 subjects. The average difference (post - 14.2. 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? (Note: If you do not have a Ti-83/84, then please use the Google Sheet function =TDIST(abs(Test Stat),degrees of freedom, tails), where tails is equal to 1 or 2 depending on the test, to report the answer accurate to four decimal places. Use the rounded test statistic value.) 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
You wish to test the following claim (H1) at a significance level of a = 0.02. For the context of this problem, Hd = 42-41 where the first data set represents a pre-test and the second data set represents a post-test. H.: Ha = 0 H1: 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 pre) is d = - 2.7 with a standard deviation of the differences of sd 41 subjects. The average difference (post - 14.2. 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? (Note: If you do not have a Ti-83/84, then please use the Google Sheet function =TDIST(abs(Test Stat),degrees of freedom, tails), where tails is equal to 1 or 2 depending on the test, to report the answer accurate to four decimal places. Use the rounded test statistic value.) 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
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:You wish to test the following claim (H1) at a significance level of a = 0.02. For the context of this
problem, Hd = µ2 -H1 where the first data set represents a pre-test and the second data set represents
a post-test.
H.:µa = 0
0 > Prt : 'H
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 = 41 subjects. The average difference (post -
pre) is d = - 2.7 with a standard deviation of the differences of sa = 14.2.
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? (Note: If you do not have a Ti-83/84, then please use the Google Sheet
function =TDIST(abs(Test Stat),degrees of freedom, tails), where tails is equal to 1 or 2 depending on the
test, to report the answer accurate to four decimal places. Use the rounded test statistic value.)
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
test from pre-test is less than 0.
the claim that the mean difference of post-
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
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