Show all 4 steps for Hypothesis Testing, as indicated in class for full credit!

Use 2 decimal places for all test statistics and critical values throughout the exam!

Each question is worth 10 points for a total of 100 points!

1)Given statistics: = 60, = 21.3, and = 8.5. Use a 0.01 significance level to test the claim that the population mean is equal to 18 sec.

draw bellcurve and show work, please.