Which of the following would be an appropriate null hypothesis?
A) The mean of a population is equal to 55.
B) The mean of a sample is equal to 55.
C) The mean of a population is greater than 55.
D) The mean of a sample is greater than 55.

Question

Quizplus · Accepted Answer

The null hypothesis typically states there is no effect or no difference, and it often specifies a population parameter (such as the mean) being equal to a value. Thus, stating the mean of a population is equal to 55 fits this criterion.

Which of the Following Would Be an Appropriate Null Hypothesis