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 equal to 55

Question

Quizplus · Accepted Answer

The null hypothesis should express no significant difference or effect. Option A expresses that there is no significant difference between the mean of a population and the value of 55, making it an appropriate null hypothesis. Options B and D state the mean of a sample, indicating that we're not interested in population statistics. Option C expresses an alternate hypothesis, rather than the null hypothesis.

Which of the Following Would Be an Appropriate Null Hypothesis