b) A company identifies that they were having quality problems in one of their manufacturing processes, so they implemented a new set of procedures. They would now like to find out whether the new procedures have been effective. Before the change, a sample of 150 products were taken, and they found that 37 were defective. After the new procedures were implemented, 24 defective products were found in a sample of 150. Have the new procedures been effective? Summary Output 4.1 was obtained

Test and Cl for Two Proportions Sample X N Sample p 1 24 150 0.160000 2 37 150 0.246667 Difference=p(1)-p(2) Estimate for difference: -0.0866667 95% upper bound for difference: -0.0106678 Test for difference = 0 (vs < O): Z = -1.88 P-Value = 0.030

State your:- hypothesis, = < - the test statistic, - p-value, - decisionreject(enter 1)/do not reject(enter 0), - conclusion Note for conclusion: -(if you think there is a significant improvement, enter 1) -(if you think with significance there is no improvement, enter 0),