STA 032 Spring 2015 (a) Test the appropriate hypothesis with . Be

            Homework 7, due June 3rd                                sure to show H0 , HA , the test-statistic, the p-value,

                                                                    your decision, and your conclusion in terms of the

1. An accounting rm is trying to decide between IT train- problem.

   ing conducted in-house and the use of third party con- (b) If we changed our to , would your conclusion

   sultants. Each type of training was implemented at two change? Explain.

   of the rms oces. The average cost for a random sam-

   ple of in-house training for 210 oces was 490, with a ...