The results of a one-sample t test are reported as follows: t = 1.15, df = 120, p = .135. Which of the following is correct?
A) There were 120 valid cases.
B) The null hypothesis was not rejected.
C) The results were statistically significant.
D) All of the above are correct.

Question

Quizplus · Accepted Answer

The p-value is greater than the commonly used alpha level of .05, indicating that we fail to reject the null hypothesis. Therefore, choice B is correct. Choice A is not necessarily correct as df = 120 does not necessarily mean that there were exactly 120 valid cases. Choice C is incorrect as the results were not statistically significant.

The Results of a One-Sample T Test Are Reported as Follows