Corporate advertising tries to enhance the image of thecorporation. A study compared two ads from two sources, theWall Street Journal and the National Enquirer.Subjects were asked to pretend that their company was considering amajor investment in Performax, the fictitious sportswear firm inthe ads. Each subject was asked to respond to the question \"Howtrustworthy was the source in the sportswear company ad forPerformax?\" on a 7-point scale. Higher values indicated moretrustworthiness. Here is a summary of the results.
| Ad source | n | x | s |
|---|
| Wall Street Journal  | 66  | 4.77  | 1.50  |
| National Enquirer | 61 | 2.43 | 1.64 |
Find the two-sample pooled t statistic. Then formulatethe problem as an ANOVA and report the results of this analysis.Verify that F = t 2.
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