73 19 16 64 28 28 31 90 60 56 31 56 22 18 45 48 17 17 17 91 92 63 50 51 69 16 an

73 19 16 64 28 28 31 90 60 56 31 56 22 18 45 48 17 17 17 91 92 63 50 51 69 16 and 17a) At 5% level of significance is there sufficient evidence to conclude that the actual mean processing time differs from the past? (Your conclusion must be in terms of the P-value as well as setting up a Rejection Region)b)Which statistical distribution should be applied and why?c) what type of error is possible and describe this error in terms of the problem.d) Based on a 95% confidence level estimate the actual mean processing time.e)Carefully interpret the interval estimationf) Explain carefully whether or not there is sufficient evidence to conclude that the actual mean processing time differs from the past using the estimation in part (d)