State the null hypothesis, Ho, and the alternative hypothesis, Ha, that would be used to test the

Question:

State the null hypothesis, Ho, and the alternative hypothesis, Ha, that would be used to test the following statements:
a. The mean value of x is the same at all five levels of the experiment.
b. The scores are the same at all four locations
c. The four levels of the test factor do not significantly affect the data.
d. The three different methods of treatment do affect the variable.