Report for each requested hypothesis test: the null and alternative hypothesis; the test statistic and p-value; whether you reject or fail to reject the null; and a concise statement of your conclusion.

1.A consumer's advocate group would like to evaluate the average energy efficiency rating (EER) of window-mounted, large-capacity air-conditioning units.A random sample of the EER for 36 units is contained in the data file EER.xls.Test the hypothesis that the population mean EER is equal to 9.0.