SOLUTION: The following items are based on the summarized table below:
hours of study
1
2
3
5
ZX=11
score on the quiz
3
5
7
9
ZY=24
XY
3
10
21
45
ZXY79
Part
Algebra ->
Probability-and-statistics
-> SOLUTION: The following items are based on the summarized table below:
hours of study
1
2
3
5
ZX=11
score on the quiz
3
5
7
9
ZY=24
XY
3
10
21
45
ZXY79
Part
Log On
Question 649486: The following items are based on the summarized table below:
hours of study
1
2
3
5
ZX=11
score on the quiz
3
5
7
9
ZY=24
XY
3
10
21
45
ZXY79
Part A** Compute the Pearson correlation.
1.What is the covariance? I believe the answer is 4.33
2.What is the standard deviation of the predictor variable? I believe the answer is 1.73
3.What is the standard deviation of the criterion variable? I believe the answer is 2.58
4.What is the Pearson’s r value? I believe the answer is 0.97
Part B**Compute the regression equation.
5.What is the numeric value for the slope? I believe the answer is 1.45
6.What is the y-intercept?
7.Set up the regression equation and use to predict the total number of points on the quiz for a person studying 6 hours. The number of points predicted for a person studying 6 hours is?
Please help me!!! Thank you!
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