Chapter TU Assignment 13, In a test of the quality of two television commercials, each commercial was shown in a separate testarea six times over a one week period. The following week a telephone survey was conducted to identify individuals who had seen the commercials. Those individuals were asked to state the primary message in the commercials. The following results were recorded 14. Commercial A Commercial B Number Who Saw Commercial 203 Number Who Recalled Message 62 Use .05 and test the hypothesis that there is no difference in the recall proportions for the two commercials Formulate the null and the alternative hypotheses. HO:21 - p2 equal to o H P1-P not equal to o What is the value of the test statistic (to 2 decimals) 0.05 What is the p-value (to 4 decimals)? 0.0139 Does there appear to be a difference in recall proportions for the two commercials? Compute a 95% confidence interval for the difference between the recall proportions for the two populations (to 4 decimals). 0.258 0.2310 It appears that Commercial A has a better recall rate