I need the answers for 1-4

Part II. Using Minitab, answer the following: Today, the engineer claims there may be a defect in one of their machines which is resulting in a lower burn time to failure. The engineer uses a random sample of 21 bulbs and recorded the burn times to failure. Use a hypothesis test (t-test) to test the engineers claim using a 5% significance level. 1) What is the value of the test statistic? 2) What is the critical value? 3) What is the p-value? 4) Can the engineer conclude there is a lower burn time based on the sample data? Explain