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April 23, 2014

Homework Help: statistics

Posted by Gee on Wednesday, September 19, 2012 at 12:17am.

Healthy breakfast contains the rating of 77 cereals and the number of grams of sugar contained in each serving. A simple linear regression model considering "sugar" as the explanatory variable and "rating" as the response variable produced the following regression line: rating= 59.3-2.40*sugars. Rsquared = .557. 1. What is the value of the slope? 2. What is the value of the coefficient of determination? 3. What is the value of the correlation coefficient? 4. What is the correct interpretation of the slope? 5. What is the correct interpretation of the correlation coefficient? 6. Suppose a particular cereal has 10 grams of sugar of sugar and rating of 33. What is the predicted rating for this cereal?

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