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1) Suppose that, on average, electricians earn approximately u = $53,200 per year in the United States. Assume that the distribution for electricians' yearly earnings is normally distributed and that the standard deviation is o = $12,500. Given a sample of sixteen electricians, what is the standard deviation for the %3D sampling distribution of the sample mean?

1) Suppose that, on average, electricians earn approximately u = $53,200 per year in the United States. Assume that the distribution for electricians' yearly earnings is normally distributed and that the standard deviation is o = $12,500. Given a sample of sixteen electricians, what is the standard deviation for the %3D sampling distribution of the sample 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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1) Suppose that, on average, electricians earn approximately u = $53,200 per year in the United States. Assume that the distribution for electricians' yearly earnings is normally distributed and that the standard deviation is = $12,500. Given a sample of sixteen electricians, what is the standard deviation for the sampling distribution of the sample mean? 2) Susan has been on a bowling team for 13 years. After examining all of her Scores over that period of time, she finds that they follow a normal distribution. Her average score is 230, with a standard deviation of 20. Using an appropriate normal transformation, what is the probability that in a one-game playoff, her score is more than 236? Multiple Choice
Transcribed Image Text:1) Suppose that, on average, electricians earn approximately u = $53,200 per year in the United States. Assume that the distribution for electricians' yearly earnings is normally distributed and that the standard deviation is = $12,500. Given a sample of sixteen electricians, what is the standard deviation for the sampling distribution of the sample mean? 2) Susan has been on a bowling team for 13 years. After examining all of her Scores over that period of time, she finds that they follow a normal distribution. Her average score is 230, with a standard deviation of 20. Using an appropriate normal transformation, what is the probability that in a one-game playoff, her score is more than 236? Multiple Choice
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