In a recent year, the Malaysia Communications and Multimedia Commission reported that the mean wait for repairs for TM point customers was 25.3 hours. In an effort to improve this service, suppose that a new repair service process was developed. This new process, used for a sample of 100 repairs, resulted in a sample mean of 22.3 hours and the population of standard deviation of 18.3 hours. a Based on the scenario above. A)what is the variable of interest? What is the population of interest? what is the parameter of interest? B)State the nulland alternative hypotheses c) Calculate the test statistics, Z. d) Assume that level of sienificance. a = 0.10. calculate the p-value [2) e) Based on the p-value obtained, should the IM point company maintain its new service process: f) If you test the hypothesis at a = 0.02, will you get the same decision as in (e)