Question

In testing the hypotheses H0: µ=300; H1: µ>300, the sample mean is found to be 120. Should the null hypothesis be rejected:

a. should not be rejected
b. should be rejected only if n > 30
c. cannot tell what the correct decision should be
d. should be rejected

Answer 1

C) Cannot tell what the correct decision should be

Explanation:

It is important to have additional information to make a definitive decision. Specifically, we need to know the sample size (n) and the standard deviation (σ) of the population or the sample. Without this information, we cannot accurately determine whether the null hypothesis should be rejected or not.