In formulating the null and alternative hypotheses, which of the following would be an acceptable null hypothesis?
A) The population mean is greater than 20.
B) The population mean is smaller than 20.
C) The population mean is equal to 20.
D) The population mean is equal to 0.

Question

Quizplus · Accepted Answer

The null hypothesis always assumes no difference or no effect, so the most acceptable null hypothesis would be that the population mean is equal to a specific value, which in this case is 20. Options A and B suggest there is some difference or effect, making them inappropriate for null hypotheses. Option D suggests a mean of 0, which may not be reasonable or appropriate for the given context.

In Formulating the Null and Alternative Hypotheses, Which of the Following