In a test of the quality of two television commercials, each commercial was shown in a separate test area six times over a oneweek 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. Commercial A Commercial B Number Who Saw Commercial 155 204 Number who Recalled Message 64 63 Use a = .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. H.=p._,,_@ Ha=m_@ What is the value of the test statistic (to 2 decimals)? 2.04 (:0 What is the pvalue (to 4 decimals)? 0.0414 0 Does there appear to be a difference in recall proportions for the two commercials? @ Compute a 95% condence interval for the difference between the recall proportions for the two populations (to 4 decimals). ( 0.0039 9, 0.2043 0) I. appear. that 9 h... a be... recall .3