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. D Pick the hypotheses most appropriate to deal with the problem above. O Ho : PA - PB = 0 HA : PA - PB > 0 O Ho : PA - PB = 0 HA : PA - PB