rnst: Attempt 1 Suppose that a researcher studying the weight of female college

Question

rnst: Attempt 1 Suppose that a researcher studying the weight of female college athletes wants to predict the weights based on height, measured in inches, and the percentage of body fat of an athlete. The researcher calculates the regression equation as (weight) 3.188 (height)+1.111 (percent body fat) 83.115. If a female athlete is 65.986 inches tall, has a 20.224 percentage of body fat, and a weight of 175.993. What is the residual? 1) 83.7312 2) 56.8392 3) -26.2758 41 We do not know the observations in the data set, so we cannot answer that question. 5) 26.2758 7

Explanation / Answer

Predicted weight = 3.188*65.986+1.111*20.224-83.115 = 149.71723

Observed weight = 175.993

resedue = Observed weight - Predicted weight = 175.993- 149.71723 = 26.2758

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