Sarah’s parents are concerned that she seems short for her age. Their doctor has recorded Sarah’s age and height on six consecutive office visits. These data were entered into a Minitab worksheet, and Sarah’s height was regressed on her age. Here is part of the computer output:

(a) Make a scatterplot of these data.

(b) Using your calculator, find the equation of the least squares regression line of height on age.

(c) Use your regression line to predict Sarah’s height at age 40 years (480 months). Convert your prediction to inches (2.54 cm = 1 inch).

(d) The prediction is impossibly large. Explain why this happened.
 

Transcribed Image Text:

Age (months): 36 48 51 54 57 60 Height (cm): 86 90 91 93 94 95 Age (months): 36 48 51 54 57 60 Height (cm): 86 90 91 93 94 95