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 strayload loss is normally distributed with
3.0.

a. Compute a 95% CI for when n
25 and x
58.3.

b. Compute a 95% CI for when n
100 and x
58.3.

c. Compute a 99% CI for when n
100 and x
58.3.

d. Compute an 82% CI for when n
100 and x
58.3.

e. How large must n be if the width of the 99% interval for is to be 1.0?