John's parents recorded his height at various ages up to 66 months. They decide to use the least-squares regression line of John's height on age to predict his height at age 21 years (252 months). We conclude:
a. John's height, in inches, should be about half his age, in months.
b. that the parents will get a fairly accurate estimate of his height at age 21 years because the data are clearly correlated.
c. such a prediction could be misleading, because it involves extrapolation.
d. none of the above
The prediction at the age of 21 years can be misleading because the model is based on the data upto 66 months and using it to determine age at 252 months is extrapolation.
Option C is correct.
John's parents recorded his height at various ages up to 66 months. They decide to use...
Comprehensive Income Tax Course: Module 1 4. Randy turned 16 last year and had his first summer job. Even though his parents are claiming him as a dependent he wants to file a return in order to get his refund. He receives his W-2 and decides he can do his own return using form 1040-EZ. Which of the following information is not found on a Form W-2? a) The taxpayer’s Social Security number b) The taxpayer’s wages, tips and other...