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An employment information service claims the mean annual pay for full-time male workers over age 25...

An employment information service claims the mean annual pay for full-time male workers over age 25 without a high school diploma is $22,250. The annual pay for a random sample of 10 full-time male workers over age 25 without a high school diploma is listed. At α=0.01, test the claim that the mean salary is $22,250. Assume the population is normally distributed. 20,659 21,136 22,356 21,398 22,978 16,913 19,153 23,196 24,186 26,283

A) Find the critical value(s) and identify the rejection region(s).

What is(are) the critical value(s), t 0t0? t 0= (Use a comma to separate answers as needed. Round to three decimal places as needed.)

B) Find the standardized test statisc t=

math   Statistics-And-Probability   
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