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 = 2.9. (Round your answers to two decimal places.) (a) Compute a 95% CI for when n=25 andx = 59.1. watts (b) Compute a 95% CI for when n100 and 59.1. watts (c) Compute a 99% CI for when n = 100 and x = 59.1. watts (d) Compute an 82% CI for when n = 100 and x = 59.1. watts (e) How large must n be if the width of the 99% interval for is to be 1.0? (Round your answer up the nearest whole number.)
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 = 2.9. (Round your answers to two decimal places.) (a) Compute a 95% CI for when n=25 andx = 59.1. watts (b) Compute a 95% CI for when n100 and 59.1. watts (c) Compute a 99% CI for when n = 100 and x = 59.1. watts (d) Compute an 82% CI for when n = 100 and x = 59.1. watts (e) How large must n be if the width of the 99% interval for is to be 1.0? (Round your answer up the nearest whole number.)
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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Transcribed Image Text:A CI is desired for the true average stray-load loss (watts) for a certain type of induction motor when the line current held at 10 amps for a speed of 1500 rpm. Assume that stray-load loss is normally distributed with = 2.9. (Round your answers to two decimal places.)
(a) Compute a 95% CI for μ when n = 25 and x = 59.1.
watts
(b) Compute a 95% CI for when n = 100 and x = 59.1.
watts
(c) Compute a 99% CI for μ when n = 100 and x = 59.1.
watts
(d) Compute an 82% CI for when n = 100 and x = 59.1.
watts
(e) How large must n be if the width of the 99% interval for is to be 1.0? (Round your answer up to the nearest whole number.)
n =
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