Analysis of the Relationship Between Daily Exercise and Body Fat Percentage

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Analysis of the Relationship Between Daily Exercise and Body Fat Percentage Homework Chapter 7 Exhibit 7-1 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) 20 18 26 33 44 % Fat 30 25 18 17 14 1. Refer to Exhibit 7-1. Assuming a linear relationship holds, the least squares regression line for predicting % fat from the amount of exercise an individual gets is__? (4 Points) The least squares regression line for predicting % fat from the amount of exercise is: y=35.74-0.53x 2. Refer to Exhibit 7-1. If an individual exercises 20 minutes daily, what is his predicted % body fat? (1 point) If an individual exercises 20 minutes daily, the predicted % body fat is 25.14. 3. Refer to Exhibit 7-1. If an individual exercises 30 minutes daily, what is his predicted % body fat? (1 point) If an individual exercises 30 minutes daily, the predicted % body fat is 19.85. 4. Refer to Exhibit 7-1. What is the value for the standard error of estimate in predicting % fat from dailv — StudyXY
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