A union of restaurant and foodservice workers would like to estimate this year's mean hourly wage, ?, of foodservice workers in the U.S. Last year's mean hourly wage was $8.14, and there is reason to believe that this year's value is different from last year's.

The union decides to do statistical test to see if the value has indeed changed. The union chooses a random sample of this year's wages, computes the mean of the sample to be

$8.44, and computes the standard deviation of the sample to be $1.25

. Based on this information, answer the questions below.

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