A CI is desired for the true average stray-load loss 𝜇 (watts) for a certain type of induction motor when the li
Posted: Tue Apr 26, 2022 5:53 pm
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 𝜎 = 2.9. (Round your answers to two
decimal places.)
(a) Compute a 95% CI for 𝜇 when n =
25 and x = 51.6.
________ , __________ watts
(b) Compute a 95% CI for 𝜇 when n =
100 and x = 51.6.
_______ , ______ watts
(c) Compute a 99% CI for 𝜇 when n =
100 and x = 51.6.
_____ , _______ watts
(d) Compute an 82% CI for 𝜇 when n =
100 and x = 51.6.
_____ , _____ watts
(e) How large must n be if the width of the 99%
interval for 𝜇 is to be 1.0? (Round your answer up to the
nearest whole number.)
n = ______
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 𝜎 = 2.9. (Round your answers to two
decimal places.)
(a) Compute a 95% CI for 𝜇 when n =
25 and x = 51.6.
________ , __________ watts
(b) Compute a 95% CI for 𝜇 when n =
100 and x = 51.6.
_______ , ______ watts
(c) Compute a 99% CI for 𝜇 when n =
100 and x = 51.6.
_____ , _______ watts
(d) Compute an 82% CI for 𝜇 when n =
100 and x = 51.6.
_____ , _____ watts
(e) How large must n be if the width of the 99%
interval for 𝜇 is to be 1.0? (Round your answer up to the
nearest whole number.)
n = ______