Two sample T hypothesis test: P1: Mean of group A P2: Mean of group B P1- P2: Difference between two means Ho: H1- P2 = 0 HA: P1- P2 # 0 (without pooled variances) Hypothesis test results: Difference Sample Diff. Std. Err. DF T-Stat P-value 6.8274661 2.4033891 57.999971 2.840766 0.0062 A researcher conducted a two-sample t-test to compare the means of two populations. Exam the computer output given above. Suppose the researcher specified a significance level of 0.05. What is the appropriate conclusion in this case? Fail to reject the null hypothesis of no difference in means because the p-value is greater than the threshold of 0.05. Fail to reject the null hypothesis of no difference in means because the p-value is below the threshold of 0.05. Reject the null hypothesis of no difference in means because the p-value is greater than the threshold of 0.05.
Two sample T hypothesis test: P1: Mean of group A P2: Mean of group B P1- P2: Difference between two means Ho: H1- P2 = 0 HA: P1- P2 # 0 (without pooled variances) Hypothesis test results: Difference Sample Diff. Std. Err. DF T-Stat P-value 6.8274661 2.4033891 57.999971 2.840766 0.0062 A researcher conducted a two-sample t-test to compare the means of two populations. Exam the computer output given above. Suppose the researcher specified a significance level of 0.05. What is the appropriate conclusion in this case? Fail to reject the null hypothesis of no difference in means because the p-value is greater than the threshold of 0.05. Fail to reject the null hypothesis of no difference in means because the p-value is below the threshold of 0.05. Reject the null hypothesis of no difference in means because the p-value is greater than the threshold of 0.05.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
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![Two sample T hypothesis test:
P1: Mean of
P2: Mean of group B
H - H2: Difference between two means
group A
Ho: H1- P2 = 0
HA: P1 - P2 # 0
(without pooled variances)
Hypothesis test results:
Difference Sample Diff. Std. Err.
DF
T-Stat
P-value
P1 - P2
6.8274661 2.4033891 57.999971 2.840766
0.0062
A researcher conducted a two-sample t-test to compare the means of two
populations. Exam the computer output given above.
Suppose the researcher specified a significance level of 0.05. What is the appropriate
conclusion in this case?
Fail to reject the null hypothesis of no difference in means because the p-value
is greater than the threshold of 0.05.
Fail to reject the null hypothesis of no difference in means because the p-value
is below the threshold of 0.05.
Reject the null hypothesis of no difference in means because the p-value
is greater than the threshold of 0.05.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F12ad9125-cf91-45ab-8079-a8a3d183c967%2F1c2be40a-a0d9-445a-bd58-ee95fb2f4ec4%2Ffzvzs3e_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Two sample T hypothesis test:
P1: Mean of
P2: Mean of group B
H - H2: Difference between two means
group A
Ho: H1- P2 = 0
HA: P1 - P2 # 0
(without pooled variances)
Hypothesis test results:
Difference Sample Diff. Std. Err.
DF
T-Stat
P-value
P1 - P2
6.8274661 2.4033891 57.999971 2.840766
0.0062
A researcher conducted a two-sample t-test to compare the means of two
populations. Exam the computer output given above.
Suppose the researcher specified a significance level of 0.05. What is the appropriate
conclusion in this case?
Fail to reject the null hypothesis of no difference in means because the p-value
is greater than the threshold of 0.05.
Fail to reject the null hypothesis of no difference in means because the p-value
is below the threshold of 0.05.
Reject the null hypothesis of no difference in means because the p-value
is greater than the threshold of 0.05.
![Two sample T hypothesis test:
P1: Mean of group A
P2: Mean of group B
H - H2: Difference between two means
Ho: H1- P2 = 0
HA: P1 - P2 # 0
(without pooled variances)
Hypothesis test results:
Difference Sample Diff. Std. Err.
DF
T-Stat
P-value
P1 - P2
6.8274661 2.4033891 57.999971 2.840766
0.0062
A researcher conducted a two-sample t-test to compare the means of two
populations. Exam the computer output given above.
Suppose the researcher specified a significance level of 0.05. What is the appropriate
conclusion in this case?
Fail to reject the null hypothesis of no difference in means because the p-value
is greater than the threshold of 0.05.
Fail to reject the null hypothesis of no difference in means because the p-value
is below the threshold of 0.05.
Reject the null hypothesis of no difference in means because the p-value
is greater than the threshold of 0.05.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F12ad9125-cf91-45ab-8079-a8a3d183c967%2F1c2be40a-a0d9-445a-bd58-ee95fb2f4ec4%2F4ylo9ib_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Two sample T hypothesis test:
P1: Mean of group A
P2: Mean of group B
H - H2: Difference between two means
Ho: H1- P2 = 0
HA: P1 - P2 # 0
(without pooled variances)
Hypothesis test results:
Difference Sample Diff. Std. Err.
DF
T-Stat
P-value
P1 - P2
6.8274661 2.4033891 57.999971 2.840766
0.0062
A researcher conducted a two-sample t-test to compare the means of two
populations. Exam the computer output given above.
Suppose the researcher specified a significance level of 0.05. What is the appropriate
conclusion in this case?
Fail to reject the null hypothesis of no difference in means because the p-value
is greater than the threshold of 0.05.
Fail to reject the null hypothesis of no difference in means because the p-value
is below the threshold of 0.05.
Reject the null hypothesis of no difference in means because the p-value
is greater than the threshold of 0.05.
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