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IS. Some managers believe that the salaries of the employees have changed since the previous year's salary of $69,000. To check this view a random

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IS. Some managers believe that the salaries of the employees have changed since the previous year's salary of $69,000. To check this view a random sample of 150 employees is obtained and the following sample statistics are found. X = $72,000; n = 150 and s= $11,000 What are the null and alternative hypothesis? Ho : H = 69,000 vs. Ha : H # 69,000 O O HO : H = 69,000 vs. Ha : H

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