1. Sample data have been collected, and the null hypothesis to be tested is, H0: "The sample was drawn from a normal population." If the analysis is based on a categorization that includes 5 cells:

a. How many degrees of freedom will be associated with the test?

b. For a test at the 0.05 level, what is the critical value of chi-square?

c. If the calculated value of the chi-square statistic is 8.13, what conclusion would be reached regarding the null hypothesis?

2. Sample data have been collected, and the null hypothesis  to be tested  is H0: "The  sample  was drawn from a normal population in which µ, 5 130." If the analy- sis is based on a categorization that includes 8 cells:

a. How many degrees of freedom will be associated with the test?

b. For a test at the 0.05 level, what is the critical value of chi-square?

c. If the calculated value of the chi-square statistic is 11.25, what conclusion would be reached regarding the null hypothesis?