Hypothesis Testing Testing the Population Mean Directions: Perform what is being asked. Write your answers on the spaces provided. (3 items x 5 points) 3. The operations manager of a sales company wants to see whether there is a significant difference in the ages of male and female customers. He selected a sample of 35 samples for each group. The ages are shown in the table below: Male Female *1 = 27.3 X2 = 28 01 = 2.4 02 = 3.1 n1 = 35 72 = 35 At a = 0.05, decide if there is enough evidence to reject the claim of no difference in the ages of the two groups. Solution: Step 1: Null and alternative hypothesis Ho: Step 2: Significance level Step 3: Test statistic: Step 4: Decision rule: Step 5: Decision