4. The following calculator display presents the results of a hypothesis test. Based on this display, answer the questions that follow: T-Test IN 12 467816 NWWOHO UXIT+ 00 a) Is this a hypothesis test for a population proportion or a population mean? b) State the null and alternative hypotheses. c) What is the sample size? d) What is the value of sample mean? (Give your answer using the correct symbol) e) What is the value of sample standard deviation? (Give your answer using the correct symbol) f) How many degrees of freedom are there? g) Do you reject the null hypothesis at the 0.05 level? Explain. h) If you test the hypothesis Ho: p = 25 versus Hi: p