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Hypothesis testing for single sample mean.

In a recent national survey, the mean weekly allowance for a nine-year-old child from his or her parents was reported to be $3.65. A random sample of 45 nine year-olds in northwestern Ohio revealed the mean allowance to be $3.69 with a standard deviation of .24. At the .05 level of significance, is there a dissimilarity in the mean allowances nationally and the mean allowances in northwestern Ohio for nine year-olds?

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