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PSY3204 CHAPTER 7 QUIZ - P SY3204 C HAPTER 7 QU IZ 1 The...

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PSY3204 CHAPTER 7 QUIZ 1. The regression of Y on X ____ a. predicts Y given X 2. A researcher collects data on the relationship between the amount of daily exercise an individual gets and the percent body fat of the individual. The following scores are recorded. Individual 1 2 3 4 5 Exercise (min) 10 18 26 33 44 % Fat 30 25 18 17 14 Assuming a linear relationship holds, the least squares regression line for predicting % fat from the amount of exercise an individual gets is ____. c. Y' = - 0.476 X + 33.272 3. A researcher collects data on the relationship between the amount of daily exercise an individual gets and the percent body fat of the individual. The following scores are recorded. Individual 1 2 3 4 5 Exercise (min) 10 18 26 33 44 % Fat 30 25 18 17 14 If an individual exercises 20 minutes daily, his predicted % body fat would be ____. a. 23.75 4. A researcher collects data on the relationship between the amount of daily exercise an individual gets and the percent body fat of the individual. The following scores are recorded.
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Individual 1 2 3 4 5 Exercise (min) 10 18 26
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