The following Minitab display gives information regarding the relationship betwe

Question

The following Minitab display gives information regarding the relationship between the body weight of a child (in kilograms) and the metabolic rate of the child (in 100 kcal/ 24 hr) Predictor Constant Weight s = 0.517508 Coef 0.8381 0.38810 R-Sq = 97, 28 SE Coef 0.4148 0.02978 2.06 0.84 13.52 0.000 (a) Write out the least-squares equation. (b) For each 1 kilogram increase in weight, how much does the metabolic rate of a child increase? (Use 5 decimal places.) (c) What is the value of the correlation coefficient r? (Use 3 decimal places.)

Explanation / Answer

a) y = 0.8381+0.38810

b) Metabolic rate of a child increase by 0.38810 ( slope of the model)

answer is 0.38810

c) Correlation Coefficient = SQRT(0.972)

= 0.986

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