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2. The average credit card debt per household in 2001 was $8637 with a standard deviation of $2400. If a sample of 225 households is randomly selected, find the probability that the mean is: a. between $8100 and $8500. b. within $200 of the population mean.

2. The average credit card debt per household in 2001 was $8637 with a standard deviation of $2400. If a sample of 225 households is randomly selected, find the probability that the mean is: a. between $8100 and $8500. b. within $200 of the population mean.

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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2. The average credit card debt per household in 2001 was $8637 with a standard deviation of $2400. If a sample of 225 households is randomly selected, find the probability that the mean is: a. between $8100 and $8500. b. within $200 of the population mean.
Transcribed Image Text:2. The average credit card debt per household in 2001 was $8637 with a standard deviation of $2400. If a sample of 225 households is randomly selected, find the probability that the mean is: a. between $8100 and $8500. b. within $200 of the population mean.
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