The distribution of results from a cholesterol test has a mean of 180 and a standard...
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The distribution of results from a cholesterol test has a mean of 180 and a standard deviation of 20. A sample size of 40 is drawn randomly. a. Find the probability that the sum of the 40 values is greater than 7,500. b. Find the sum that is one standard deviation above the mean of the sums. c. Find the percentage of sums between 1.5 standard deviations below the mean of the sums and one standard deviation above the mean of the sums. 4 The distribution of results from a cholesterol test has a mean of 180 and a standard deviation of 20. A sample size of 40 is drawn randomly. a. Find the probability that the sum of the 40 values is greater than 7,500. b. Find the sum that is one standard deviation above the mean of the sums. c. Find the percentage of sums between 1.5 standard deviations below the mean of the sums and one standard deviation above the mean of the sums. 4
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a Find the probability that the sum of the 40 values is greater than 7500 First calculate the mean a... View the full answer
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Statistics Informed Decisions Using Data
ISBN: 9780134133539
5th Edition
Authors: Michael Sullivan III
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