Car manufacturers continuously aim to improve the quality of their vehicles by reducing manufacturing defects. This leads to an increase in customer satisfaction and the manufacturer can continue to compete successfully in the marketplace. Suppose that one such car manufacturer has two independent assembly lines, Line A and Line B. The manufacturer wishes to determine if Line A is producing fewer defective cars than Line B. Over a monthly period, data was collected on the number of defective cars produced by assembly Line A out of a total of 220 manufactured cars and the number of defective cars produced by Line B out of a total of 250 manufactured cars. If a manufactured car has one or more defects it is counted as a defective car. Assume all checks have been verified.

Question 11 1 pts Pick the hypotheses most appropriate to deal with the problem above. OH PA-PA = 0 HAPA -Pa 0 O HOPA-Pe=0 HAPA - PB 0 D Question 12 1 pts If the p-value for the test is 0.0284, what would be the test statistic for the test (assume the test statistic is negative)? 0 -1.83 O - 1.90 O -1.99 O -1.94 1 pts This problem deals with which of the following: Two means One mean One proportion Two proportions Question 14 1 pts If the p-value for the test is 0.0762, choose the most appropriate conclusion for the hypothesis test (Assume a significance level of 5%). There is sufficient evidence to conclude that the proportion of defective cars manufactured by Line Ais greater than the proportion of defective cars manufactured by Line B. There is sufficient evidence to conclude that the proportion of defective cars manufactured by Line A is less than the proportion of defective cars manufactured by Line B. There is insufficient evidence to conclude that the proportion of defective cars manufactured by Line Ais less than the proportion of defective cars manufactured by Line B. There is insufficient evidence to conclude that the proportion of defective cars manufactured by Line Als greater than the proportion of defective cars manufactured by Line B