Posted by **Joy Chapman** on Tuesday, October 18, 2011 at 3:30pm.

Assuming that the regression equation for the relationship between IQ score and psychology exam score is Y' = 9+ 0.274X, what would you expect the psychology exam scores to be for the following individuals given their IQ exam scores?

Individual

Tim

Tom

Tina

Tory

IQ Score (X)

Tim's IQ Score (X) = 118

Tom's IQ Score (X) = 98

Tina's IQ Score (X) = 107

Tory's IQ Score (X) = 103

Psychology Exam Score (Y)

Tim =

Tom =

Tina =

Tory =

- Statistics: IQ Score (X) and Exam Score (Y) -
**MathGuru**, Tuesday, October 18, 2011 at 6:49pm
Substitute each score for X in the regression equation and solve for predicted y (Y').

- Statistics: IQ Score (X) and Exam Score (Y) -
**hj**, Saturday, April 14, 2012 at 10:35am
hhjjh6776

- Statistics: IQ Score (X) and Exam Score (Y) -
**Kiz**, Thursday, December 27, 2012 at 1:37am
Tim= 41

Tom=36

Tina= 38

Tory =37

Y'=9+0.274(118)

Y'=41.332

- Statistics: IQ Score (X) and Exam Score (Y) -
**Anonymous**, Thursday, October 3, 2013 at 11:03pm
The producers of a new toothpaste claim that it prevents more cavities than other brands of toothpaste. A random sample of 60 people used the new toothpaste for 6 months. The mean number of cavities at their next check up is 1.5 in the general population the mean # of cavities after a 6 month check up is 1.73 (@-1.12). Is this a 1 or 2 tailed test

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