IQ scores are normally distributed with a mean of 105 and a standard deviation of 18. Assume that many samples of size n are taken from a large population of peo and the mean IQ score is computed for each sample. a. If the sample size is n= 81, find the mean and standard deviation of the distribution of sample means. The mean of the distribution of sample means is The standard deviation of the distribution of sample means is (Type an integer or decimal rounded to the nearest tenth as needed.) b. If the sample size is n= 121, find the mean and standard deviation of the distribution of sample means. The mean of the distribution of sample means is. The standard deviation of the distribution of sample means is. (Type an integer or decimal rounded to the nearest tenth as needed.) c. Why is the standard deviation in part a different from the standard deviation in part b? Choose the correct answer below.

IQ scores are normally distributed with a mean of 105 and a standard deviation of 18. Assume that many samples of size n are taken from a large population of peo and the mean IQ score is computed for each sample. a. If the sample size is n= 81, find the mean and standard deviation of the distribution of sample means. The mean of the distribution of sample means is The standard deviation of the distribution of sample means is (Type an integer or decimal rounded to the nearest tenth as needed.) b. If the sample size is n= 121, find the mean and standard deviation of the distribution of sample means. The mean of the distribution of sample means is. The standard deviation of the distribution of sample means is. (Type an integer or decimal rounded to the nearest tenth as needed.) c. Why is the standard deviation in part a different from the standard deviation in part b? Choose the correct answer below.

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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