STAT 452/652 - HOMEWORK 6 SOLUTIONS
1. Does the model seem to fit the data?
Not really, lots of spread of the data around the regression line, small R2.
2. What is the average difference in the final score per one point increase in the exam2 score?
STAT 452/652 HOMEWORK 2
1. Light bulbs of a certain type are advertised as having an average lifetime of 800 hours. The price of these bulbs
is very favorable, so a potential customer has decided to go ahead with a purchase arrangement unless it
STAT 452/652 HOMEWORK 1
1. Suppose that only 25% of all drivers come to a complete stop at an intersection having flashing red lights in all directions when no
other cars are visible. What is the probability that, of 20 randomly chosen drivers c
STAT 452/652 - HOMEWORK 5 SOLUTIONS
An admissions officer at a small college took a sample of 20 freshmen GPAs at the and of the first year and
their ACT scores to evaluate if he can predict the GPA from ACT. The data are in the MINITAB project