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2. (20 points) A random sample of 16 senior employees at a large company yielded a sample mean annual salary of $109,450 with a sample standard deviation of $9,400. Determine a 95 percent confidence interval of the average salary of all senior employees at that company
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Answer #1

o atl Sener f the Co 0& tuen (107450± 2-1 3 1 x (104442-15) ce t04q2 15 7400 ㄒㄛˊ lO 11445다.85) 1194585

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