a-random-sample-of-130130-male-engineering-students-is-obtained-and-their-height

Question

A random sample of 130130 male engineering students is obtained, and their heights are measured in inches	ext{inches} and in centimeters	ext{centimeters}.From the regression analysis, the predicted height in centimeters	ext{centimeters} for a student who is 70 inches70	ext{  inches} tall is found to be 177.8 cm177.8	ext{ cm}. The sum of squared residuals from the regression is 42.25 cm2	ext{42.25 cm}^2.i. What is the value of the standard error of estimate (SE)?ii. For a student whose height is 70 inches70	ext{  inches}, what is the 95%95\% prediction interval?

Accepted Answer

i. SE=0.57 cmSE=0.57	ext{ cm}ii. (176.66 cm, 178.94 cm)\left(176.66	ext{ cm, }178.94ight.	ext{ cm)}

Answer

i. SE=0.46 cmSE=0.46	ext{ cm}ii. (176.45 cm, 179.15 cm)\left(176.45	ext{ cm, }179.15ight.	ext{ cm)}

Answer

i. SE=0.46 cmSE=0.46	ext{ cm}ii. (176.45 cm, 178.94 cm)\left(176.45	ext{ cm, }178.94ight.	ext{ cm)}

Answer

i. SE=0.57 cmSE=0.57	ext{ cm}ii. (176.66 cm, 179.15 cm)\left(176.66	ext{ cm, }179.15ight.	ext{ cm)}