Question

The Bureau of Labor Statistics posts a table of average weekly hours worked by production workers on private, nonfarm payrolls by major industry. These seasonally adjusted data were downloaded from their website January 4, 2010.
a. At the 0.05 level of significance, is the evidence sufficient to reject the claim that there is no difference in the mean weekly hours worked by month? Show graphical evidence to visually support your conclusion.
b. At the 0.05 level of significance, is the evidence sufficient to reject the claim that there is no difference in the mean weekly hours worked each year? Show graphical evidence to visually support your conclusion.


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  • CreatedAugust 28, 2015
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