Way back in the olden days, Blockbuster tallied all their US movie rental data and found that on average, individuals rent 10 movies a year with a standard deviation of 3. Treat these as population statistics. They wanted to see if movie rental rates in Yuma, Arizona, were different from those of the country as a whole (why Yuma? Who knows ). A random sample of 25 blockbuster members in Yuma yielded a mean rental rate of 11.3 movies per year. Use alpha = .05

a. State the null and alternative hypotheses

b. State the decision rule

c. Calculate the test statistic

d. State the decision

e. Interpret the results

f. State whether and how necessary assumptions are met