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A CI is desired for the true average stray-load loss (watts) for a certain type of induction motor when the line current is held at 10 amps for a speed of 1500 rpm. Assume that stray-load loss is normally distributed with = 2.8. (Round your answers to two decimal places.) (a) Compute a 95% CI for μ when n = 25 and x = 52.5. watts (b) Compute a 95% CI for u when n = 100 and x = 52.5. watts (c) Compute a 99% CI for μ when n = 100 and X = 52.5. watts

A CI is desired for the true average stray-load loss (watts) for a certain type of induction motor when the line current is held at 10 amps for a speed of 1500 rpm. Assume that stray-load loss is normally distributed with = 2.8. (Round your answers to two decimal places.) (a) Compute a 95% CI for μ when n = 25 and x = 52.5. watts (b) Compute a 95% CI for u when n = 100 and x = 52.5. watts (c) Compute a 99% CI for μ when n = 100 and X = 52.5. watts

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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A CI is desired for the true average stray-load loss μ (watts) for a certain type of induction motor when the line current is held at 10 amps for a speed of 1500 rpm. Assume that stray-load loss is normally distributed with o = 2.8. (Round your answers to two decimal places.) (a) Compute a 95% CI for μ when n = 25 and x = 52.5. watts (b) Compute a 95% CI for u when n = 100 and X = 52.5. watts (c) Compute a 99% CI for μ when n = 100 and X = 52.5. watts (d) Compute an 82% CI for μ when n = 100 and x = 52.5. watts (e) How large must n be if the width of the 99% interval for u is to be 1.0? (Round your answer up to the nearest whole number.) n =
Transcribed Image Text:A CI is desired for the true average stray-load loss μ (watts) for a certain type of induction motor when the line current is held at 10 amps for a speed of 1500 rpm. Assume that stray-load loss is normally distributed with o = 2.8. (Round your answers to two decimal places.) (a) Compute a 95% CI for μ when n = 25 and x = 52.5. watts (b) Compute a 95% CI for u when n = 100 and X = 52.5. watts (c) Compute a 99% CI for μ when n = 100 and X = 52.5. watts (d) Compute an 82% CI for μ when n = 100 and x = 52.5. watts (e) How large must n be if the width of the 99% interval for u is to be 1.0? (Round your answer up to the nearest whole number.) n =
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