MATH 533 Week 4 Homework Problems
Course: MATH 533 Applied Managerial Statistics Institution: DeVry Contributor: Mike Mentzer Format: DOCX/PPTX Pages: 7
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WEEK 4 HOMEWORK A random sample of 100 selected from a population with a standard deviation of 10 yielded a mean = 225. The mean and the standard deviation of the distribution of the sample means are. 225 and 0.1 22.5 and 10 22.5 and 1 225 and 1 225 and 10 Suppose a random sample of 49 is selected from a population of size N = 500 with a standard deviation of 14. If the sample mean is 125, the 99% confidence interval to estimate the population mean is between. 119.85 and 130.15 120.10 and 129.90 119.85 and 135.15 118.00 and 132.00 119.85 and 129.90 A manufacturer wants to purchase a certain pr
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