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The mean is u; = ,and the standard deviation is o; = [ (Round to the nearest integer as needed. Do not include the $ symbol in your answers.) Sketch a graph of the sampling distribution. Choose the correct answer below. O A. O B. OC. O D. A A AI A 20,721 22,321 70,000 139,000 208,000 Mean salary (in dollars) 128,000 139,000 150,000 Mean salary (in dollars) 9,721 20,721 Mean salary (in dollars) 19,121 Mean salary (in dollars) 31,721

The mean is u; = ,and the standard deviation is o; = [ (Round to the nearest integer as needed. Do not include the $ symbol in your answers.) Sketch a graph of the sampling distribution. Choose the correct answer below. O A. O B. OC. O D. A A AI A 20,721 22,321 70,000 139,000 208,000 Mean salary (in dollars) 128,000 139,000 150,000 Mean salary (in dollars) 9,721 20,721 Mean salary (in dollars) 19,121 Mean salary (in dollars) 31,721

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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The annual salary for one particular occupation is normally distributed, with a mean of about $139,000 and a standard deviation of about $23,000. Random samples of 45 are drawn from this population, and the mean of each sample is determined. Find the mean and standard deviation of the sampling distribution of these sample means. Then, sketch a graph of the sampling distribution. The mean is \( \mu_{\bar{x}} = \) [blank], and the standard deviation is \( \sigma_{\bar{x}} = \) [blank]. (Round to the nearest integer as needed. Do not include the $ symbol in your answers.) Sketch a graph of the sampling distribution. Choose the correct answer below. - Option A: A graph with a normal distribution centered at a mean salary of around $20,721, with markers at $9,721, $20,721, and $31,721. - Option B: A graph with a normal distribution centered at a mean salary of around $20,721, with markers at $19,121, $20,721, and $22,321. - Option C: A graph with a normal distribution centered at a mean salary of $139,000, with markers at $70,000, $139,000, and $208,000. - Option D: A graph with a normal distribution centered at a mean salary of $139,000, with markers at $128,000, $139,000, and $150,000.
Transcribed Image Text:The annual salary for one particular occupation is normally distributed, with a mean of about $139,000 and a standard deviation of about $23,000. Random samples of 45 are drawn from this population, and the mean of each sample is determined. Find the mean and standard deviation of the sampling distribution of these sample means. Then, sketch a graph of the sampling distribution. The mean is \( \mu_{\bar{x}} = \) [blank], and the standard deviation is \( \sigma_{\bar{x}} = \) [blank]. (Round to the nearest integer as needed. Do not include the $ symbol in your answers.) Sketch a graph of the sampling distribution. Choose the correct answer below. - Option A: A graph with a normal distribution centered at a mean salary of around $20,721, with markers at $9,721, $20,721, and $31,721. - Option B: A graph with a normal distribution centered at a mean salary of around $20,721, with markers at $19,121, $20,721, and $22,321. - Option C: A graph with a normal distribution centered at a mean salary of $139,000, with markers at $70,000, $139,000, and $208,000. - Option D: A graph with a normal distribution centered at a mean salary of $139,000, with markers at $128,000, $139,000, and $150,000.
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