MATH
posted by CANDICE .
You are interested in finding out if a studentâ€™s ACTscore is a good predictor of their final college grade point average(GPA). You have obtained the following data and are going to conduct a regression analysis. Follow instructions on page 324 of your textbook under line of best fit to conduct this analysis?
ACT GPA
22.0 3.0
32.0 3.78
33.0 3.68
21.0 2.94
27.0 3.38
25.0 3.21
30.0 3.65
a) What is the R? What type of relationship does it indicate (strong/weak; positive/negative)?
b) Go to the coefficients readout. The constant is the intercept. Under that is the ACT and that is the slope. Using the straight line formula of Y = mx + b, which you will find on page 313, you will now predict some future GPA scores: In the formula (m) is the slope; (x) is the variable that you are looking to use
as a predictor; and (b) is the intercept. Predict GPA from the following ACT scores using the regression
equation/straight line formula (show all your work):
1) 20
2) 25
3) 34

MATH 
PsyDAG
Did you read your instructions on page 324? I can't read them.
I searched Google under the key words "regression analysis" to get these possible sources:
http://aolsearcht7.search.aol.com/aol/search?query=regression+analysis&s_it=clientbrowsermacunauth
In the future, you can find the information you desire more quickly, if you use appropriate key words to do your own search. Also see http://hanlib.sou.edu/searchtools/.
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