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In a large population of adults, the mean IQ is 116 with a standard deviation of 24. Suppose 50 adults are randomly selected for a market research campaign. (Round to 2 decimal places for all z-values and round all other answers to 4 decimal places, if needed.) (a) The distribution of IQ is approximately normal (b) The distribution of the sample mean IQ is approximately normal with a mean of and a standard deviation of (c) The probability that the sample mean IQ is less than 113 is (d) The probability that the sample mean IQ is greater than 113 is (e) The probability that the sample mean IQ is between 113 and 120 is

In a large population of adults, the mean IQ is 116 with a standard deviation of 24. Suppose 50 adults are randomly selected for a market research campaign. (Round to 2 decimal places for all z-values and round all other answers to 4 decimal places, if needed.) (a) The distribution of IQ is approximately normal (b) The distribution of the sample mean IQ is approximately normal with a mean of and a standard deviation of (c) The probability that the sample mean IQ is less than 113 is (d) The probability that the sample mean IQ is greater than 113 is (e) The probability that the sample mean IQ is between 113 and 120 is

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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In a large population of adults, the mean IQ is 116 with a standard deviation of 24. Suppose 50 adults are randomly selected for a market research campaign. (Round to 2 decimal places for all z-values and round all other answers to 4 decimal places, if needed.) (a) The distribution of IQ is approximately normal (b) The distribution of the sample mean IQ is approximately normal with a mean of and a standard deviation of (c) The probability that the sample mean IQ is less than 113 is (d) The probability that the sample mean IQ is greater than 113 is (e) The probability that the sample mean IQ is between 113 and 120 is Check
Transcribed Image Text:In a large population of adults, the mean IQ is 116 with a standard deviation of 24. Suppose 50 adults are randomly selected for a market research campaign. (Round to 2 decimal places for all z-values and round all other answers to 4 decimal places, if needed.) (a) The distribution of IQ is approximately normal (b) The distribution of the sample mean IQ is approximately normal with a mean of and a standard deviation of (c) The probability that the sample mean IQ is less than 113 is (d) The probability that the sample mean IQ is greater than 113 is (e) The probability that the sample mean IQ is between 113 and 120 is Check
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