Question

1. Calculate a regression equation using Anxiety as the predictor and Test Score as the predicted variable. What is the slope?

2. Which is an interpretation of the slope?

3. Using the same regression, what is the y-intercept?

4. Which is an interpretation of the y-intercept?

5. Use the regression equation to predict a Test Score for someone with an Anxiety level of 6.

StudyTime Anxiety Die Roll Test Score Commute Class ID# 10 Senior Freshman Junior Senior Freshman Junior Senior Freshman Junior Senior Freshman Junior Senior Freshman Junior Senior Freshman Junior Freshman Senior 93 No 40 Yes 70 Yes 83 No 30 No 50 Yes 93 No 40 Yes 70 No 83 No 30 Yes 55 Yes 93 No 42 Yes 75 Yes 83 No 32 No 59 No 40 Yes 78 Yes 10 9 10 12 13 14 15 16 17 18 19 20 12 A. For every 1 unit of increase in anxiety, test scores are decreased by the slope. B. For every 1 unit of increase in test scores, anxiety levels are decreased by the slope. C.For every 1 unit of increase in anxiety, test scores are increased by the slope. D. For every 1 unit of increase in test scores, anxiety levels are increased by the slope. A. When anxiety is zero, test scores are equal to the slope. B. When test scores are 0, the mean of the anxiety scores are equal to the y-intercept. C.When anxiety levels are 1, the mean of the test scores are equal to the y-intercept. DWhen anxiety is O, the mean of the test scores are equal to the y-intercept.

Answer 1

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