Question: A study compared two ads from two sources, the Wall Street Journal and the National Enquirer . Subjects were asked to pretend that their company

A study compared two ads from two sources, theWall Street Journaland theNational Enquirer. Subjects were asked to pretend that their company was considering a major investment in Performax, the fictitious sportswear firm in the ads. "How trustworthy was the source in the sportswear company ad for Performax?" on a 7-point scale. Higher values indicated more trustworthiness. Here is a summary of the results.

Ad source n xbar s

Wall Street Journal664.771.50

National Enquirer 61 2.43 1.64

Find the two-sample pooledtstatistic. Then formulate the problem as an ANOVA and report the results of this analysis. Verify thatF=t².

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