Sample data have been collected, and the null hypothesis to be tested is H0 The sample was drawn from a normal population in which 130 If the analysis 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, wh...

a The degrees of freedom are 8 1 1 6 m 1 in this case since we have to estimate the stand ...

Sample data have been collected, and the null hypothesis to be tested is H0: The sample was

Question:

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 = 130.” If the analysis 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?