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Questions 10–11. Suppose the mean weekly income of students working in Toronto is u with a standard deviation of o. Two independent random samples, each of size 50, is selected to estimate u . Denote the sample means by X1 and X2. 10. The probability P(X1– X2 > 0.50) is closest to (a) 0.0228 V(b) 0.0062 (c) 0.4772 (d) 0.4938 (e) 0.6145

Questions 10–11. Suppose the mean weekly income of students working in Toronto is u with a standard deviation of o. Two independent random samples, each of size 50, is selected to estimate u . Denote the sample means by X1 and X2. 10. The probability P(X1– X2 > 0.50) is closest to (a) 0.0228 V(b) 0.0062 (c) 0.4772 (d) 0.4938 (e) 0.6145

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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Questions 10–11. Suppose the mean weekly income of students working in Toronto is u with a standard deviation of o. Two independent random samples, each of size 50, is selected to estimate u . Denote the sample means by X1 and X2 . 10. The probability P(X1 - X2 > 0.50) is closest to (a) 0.0228 V(b) 0.0062 (c) 0.4772 (d) 0.4938 (e) 0.6145 11. If o =20, which one of the following has approximately a standard normal distribution? (b) – (x - x3) (a) X2 (d) (e)
Transcribed Image Text:Questions 10–11. Suppose the mean weekly income of students working in Toronto is u with a standard deviation of o. Two independent random samples, each of size 50, is selected to estimate u . Denote the sample means by X1 and X2 . 10. The probability P(X1 - X2 > 0.50) is closest to (a) 0.0228 V(b) 0.0062 (c) 0.4772 (d) 0.4938 (e) 0.6145 11. If o =20, which one of the following has approximately a standard normal distribution? (b) – (x - x3) (a) X2 (d) (e)
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