Do these data indicate a significant change in holiday

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A newspaper article reported that the typical American family spent an average of $81 for Halloween candy and costumes last year. A sample of n=16 families this year produced a mean of $90 with SS=9375. Do these data indicate a significant change in holiday spending? Use a two-tailed test with alpha = .05. What are the detailed steps for hypothesis testing?

Reference no: EM13614406

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