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.

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Author:Amos Gilat
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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.
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.
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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