The Study Evaluated The Relationship Between Scores

The study evaluated the relationship between scores from the 7-minute Screen and scores for the same patients from a set of cognitive exams that are typically used to test for Alzheimer’s disease. For a sample of n = 9 patients, the scores for the 7-minute Screen averaged M = 7 with SS = 92. The cognitive test scores averaged M = 17 with SS = 236. For these data, SP =127.a. Find the regression equation for predicting the cognitive scores from the 7-MinuteScreen score.b. What percentage of variance in the cognitive scores is accounted for by the regression equation?c. Does the regression equation account for a significant portion of the variance in the cognitive scores?What is the slope of the regression line?What is the interception of the regression line?What is the coefficient of determination of the regression line?What is critical r?

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The study evaluated the relationship between scores

Question
The study evaluated the relationship between scores from the 7-minute Screen and scores for the same patients from a set of cognitive exams that are typically used to test for Alzheimer’s disease. For a sample of n = 9 patients, the scores for the 7-minute Screen averaged M = 7 with SS = 92. The cognitive test scores averaged M = 17 with SS = 236. For these data, SP =127.a. Find the regression equation for predicting the cognitive scores from the 7-MinuteScreen score.b. What percentage of variance in the cognitive scores is accounted for by the regression equation?c. Does the regression equation account for a significant portion of the variance in the cognitive scores?

What is the slope of the regression line?

What is the interception of the regression line?

What is the coefficient of determination of the regression line?

What is critical r?

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