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 a 2.9. (Round your answers to two decimal places. (a) Compute a 95% CI for when n=25 and 59.1. x watts 67.24 x01.06 (b) Compute a 95% CI for when n 100 and 59.1. 58.53 X 50.67 x watts (c) Compute a 99% CI for when n 100 and x 59.1. 58.35 x 50.85 xwatts
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 a 2.9. (Round your answers to two decimal places. (a) Compute a 95% CI for when n=25 and 59.1. x watts 67.24 x01.06 (b) Compute a 95% CI for when n 100 and 59.1. 58.53 X 50.67 x watts (c) Compute a 99% CI for when n 100 and x 59.1. 58.35 x 50.85 xwatts
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
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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 u when n = 25 and x 59.1.
=
x
61.96
1x).
watts
57.24
(b) Compute a 95% CI for when n = 100 and x = 59.1.
58.53
X 59.67
]× )
X watts
(c) Compute a 99% CI for when n = 100 and x = 59.1.
58.35
x
X.
59.85
1x watts
(d) Compute an 82% CI for when n = 100 and x = 59.1.
58.35
x
59.85
1x).
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 =](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Ff6caac49-b571-4d61-a050-647f9235352a%2F46a38415-9765-4e8e-8bbc-8d0c8296a874%2Fwvdtx9p_processed.png&w=3840&q=75)
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 u when n = 25 and x 59.1.
=
x
61.96
1x).
watts
57.24
(b) Compute a 95% CI for when n = 100 and x = 59.1.
58.53
X 59.67
]× )
X watts
(c) Compute a 99% CI for when n = 100 and x = 59.1.
58.35
x
X.
59.85
1x watts
(d) Compute an 82% CI for when n = 100 and x = 59.1.
58.35
x
59.85
1x).
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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