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Consider the hypothesis test below. Ho : p1 - p2 So H, : P1 P2 > 0 The following results are for independent samples taken from the two populations, Sample 1 Sample 2 ni 100 n2 300 P1 = 0.26 P2 = 0.14 Use pooled estimator of p. a. What is the value of the test statistic (to 2 decimals)? b. What is the p-value (to 4 decimals)? c. With a = .05 , what is your hypothesis testing conclusion? Select your answer In a test of the quality of two television commercials, each commercial was shown in a separate test area 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. 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. Select your answer - Ho : P1 - P2 H: P1 - P2 Select your answer - What is the value of the test statistic (to 2 decimals)? What is the p-value (to 4 decimals)? Does there appear to be a difference in recall proportions for the two commercials? Select your answer v Compute a 95% confidence interval for the difference between the recall proportions for the two populations (to 4 decimals). It appears that Select your answer has a better recall rate