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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 = 2.9. (Round your answers to two decimal places.) (a) Compute a 95% CI for when n=25 and x = 59.1. 57.96 ✓ 60.24 watts (b) Compute a 95% CI for when n = 100 and 59.1. 58.53 ✓ 50.67 ✔) was watts (c) Compute a 99% CI for when n = 100 and x = 59.1. 58.35 ✓ 59.85 ✔) watts (d) Compute an 82% CI for when n = 100 and 59.1. 50.67 x 58.35 x 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

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 and x = 59.1. 57.96 ✓ 60.24 watts (b) Compute a 95% CI for when n = 100 and 59.1. 58.53 ✓ 50.67 ✔) was watts (c) Compute a 99% CI for when n = 100 and x = 59.1. 58.35 ✓ 59.85 ✔) watts (d) Compute an 82% CI for when n = 100 and 59.1. 50.67 x 58.35 x 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

A First Course in Probability (10th Edition)
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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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 μ when n = 25 and x = 59.1. ✓ 60.24 watts 57.96 (b) Compute a 95% CI for when n = 100 and x = 59.1. 58.53 ✓ 59.67 ✔ watts (c) Compute a 99% CI for μ when n = 100 and x = 59.1. 59.85 ✔ watts 58.35 (d) Compute an 82% CI for when n = 100 and x = 59.1. H x 58.35 59.67 " x )w. 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 =
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 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 μ when n = 25 and x = 59.1. ✓ 60.24 watts 57.96 (b) Compute a 95% CI for when n = 100 and x = 59.1. 58.53 ✓ 59.67 ✔ watts (c) Compute a 99% CI for μ when n = 100 and x = 59.1. 59.85 ✔ watts 58.35 (d) Compute an 82% CI for when n = 100 and x = 59.1. H x 58.35 59.67 " x )w. 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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