In: Statistics and Probability
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 | 148 | 203 |
Number Who Recalled Message | 62 | 62 |
What is the value of the test statistic (to 2 decimals)?
What is the p-value (to 4 decimals)?
Compute a 95% confidence interval for the difference between the recall proportions for the two populations (to 4 decimals).
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