Consider the following hypotheses: H0: u= 8, Ha: u not= 8 Suppose the population is normally distributed. A sample produces the following observations: 6, 9, 8, 7, 7, 11, 10. (Round your answers to 3 decimal places if needed) a. Determine the type of the hypothesis test. b. Calculate the value of the test statistic. c. Find the critical value at the 5% significance level. d. At the 5% significance level, what is the conclusion to the hypothesis test?