Complete the steps needed in solving the z test of the given statement. For Step 3: z computed, no need to show your solution, answer only, and for Step 4: Decision rule, no need to draw for the graph of the normal curve, just indicate whether the null hypothesis will be rejected or not.

7 A report in LTO stated that the average age of taxis in the Philippines is 12 years. An operations manager of a large taxi company selects a sample of 40 taxis and finds the average age of the taxis is 11.2 years. The o of the population is 2.3 years. At a = 0.05, can it be concluded that the average age of the taxis in his company is less than the national average? Solution: Step 7: State the hypotheses. Ho: HI: Step 2: The level of significance and critical region. a = and Zcritical = Step 3: Compute for the value of one sample z test. Zcomputed = Step 4: Decision rule. Step 5: Conclusion