A CI is desired for the true average stray-load loss u (watts) for a certain type of induction motor whenthe line current is held at 10 amps for a speed of 1500 rpm. Assume that stray-load loss is normallydistributed with o = 3.0.a. Compute a 95% CI for µ when n = 25 and T = 58.3.b. Compute a 95% CI for u when n = 100 and a = 58.3.c. Compute a 99% CI for µ when n = 100 and a = 58.3.d. Compute an 82% CI for µ when n = 100 and a = 58.3.e. How large must n be if the width of the 99% interval for µ is to be 1.0?

(a) Obtain the 95% confidence interval for the population mean. The 95% confidence interval for the…

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 ơ = 3.0. a. Compute a 95% CI for µ when n = 25 and a = 58.3. b. Compute a 95% CI for µ when n = 100 and a = 58.3. c. Compute a 99% CI for µ when n = 100 and a = 58.3.

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 ơ = 3.0. a. Compute a 95% CI for µ when n = 25 and a = 58.3. b. Compute a 95% CI for µ when n = 100 and a = 58.3. c. Compute a 99% CI for µ when n = 100 and a = 58.3.

Mathematics For Machine Technology

8th Edition

ISBN:9781337798310

Author:Peterson, John.

Publisher:Peterson, John.

Chapter47: Applications Of Formulas To Cutting Speed, Revolutions Per Minute, And Cutting Time

Section: Chapter Questions

Problem 41A: Compute the following problems. Express the answers to 1 decimal place. Use: T=LFN A slot 812.00...

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Question

A CI is desired for the true average stray-load loss u (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 = 3.0.
a. Compute a 95% CI for µ when n = 25 and T = 58.3.
b. Compute a 95% CI for u when n = 100 and a = 58.3.
c. Compute a 99% CI for µ when n = 100 and a = 58.3.
d. Compute an 82% CI for µ when n = 100 and a = 58.3.
e. How large must n be if the width of the 99% interval for µ is to be 1.0?

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