An article in the San Jose Mercury News stated that students in the California state university system take 5.5 years, on average, to finish their undergraduate degrees. A freshman student believes that the mean time is less and conducts a survey of 52 students. The student obtains a sample mean of 4.7 with a sample standard deviation of 1.8. Is there sufficient evidence to support the student's claim at an ax = 0.1 significance level? Preliminary: a. Is it safe to assume that n < 5% of all college students in the local area? No Yes b. Is n 30? Yes No Test the claim: a. Determine the null and alternative hypotheses. Enter correct symbol and value. H: 1 Ha? b. Determine the test statistic. Round to four decimal places. t c. Find the p-value. Round to 4 decimals. p-value= d. Make a decision. Reject the null hypothesis. Fail to reject the null hypothesis.