Question
There are 300 students enrolled in Business Statistics. Historically, scores are normally distributed with a standard deviation of 24.5. Your instructor randomly selected a sample
There are 300 students enrolled in Business Statistics. Historically, scores are normally distributed with a standard deviation of 24.5. Your instructor randomly selected a sample of 30 examinations and finds a mean of 77.3. Determine a 90% confidence interval for the mean score for all students taking the course. (Round your answer(s) to 3 decimal places.)
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Statistics For Business And Economics
Authors: Paul Newbold, William Carlson, Betty Thorne
8th Edition
0132745658, 978-0132745659
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