Researchers interviewed young adults in Canada and the U.S. to compare their ages when they enter the workforce. The mean age of the 100 Canadians was 18 with a standard deviation of 6.  The mean age of the 130 people interviewed in the U.S. was 20 with a standard deviation of 8. Is the mean age of entering the workforce in Canada lower than the mean age in the U.S.?  a) Identify the null and alternate hypothesis   b) Find the test statistic (show all work)   c) Find the P-value (show all work) and evaluate whether the mean age of entering the workforce in Canada is lower than the mean age in the U.S..? Test at a 1% significance level.

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