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When the 636 male workers in the 2008 GSS were

When the 636 male workers in the 2008 GSS were asked how many hours they worked in the previous week, the mean was 45.5 with a standard deviation of 15.16. Does this suggest that the population mean work week for men exceeds 40 hours? Answer by:

a. Identifying the relevant variable and parameter.

b. Stating null and alternative hypotheses.

c. Reporting and interpreting the P-value for the test statistic value of t = 9.15.

d. Explaining how to make a decision for the significance level of 0.01.

a. Identifying the relevant variable and parameter.

b. Stating null and alternative hypotheses.

c. Reporting and interpreting the P-value for the test statistic value of t = 9.15.

d. Explaining how to make a decision for the significance level of 0.01.

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