A study of n=50 hospital employees found that the number of latex gloves used per week by the sampledworkers is summarized by x = 23.1 and s = 12.5. Let ? represent the mean number of latex gloves used per week by all hospital employees. Consider testing H0: ?= 27 vs Ha: ?<27 at a level of significance of 0.01a. Calculate the value of the test statistic. b. Calculate the observed significance level c. Use the results, part a and b, to make the appropriate conclusion, in words of the problem
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