(Answered) What is the slope of the regression line

Statistics

Problem: 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?

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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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