Question: Refer to the description of a computer display for regression in Problem 5. The following Minitab display gives information regarding the relationship between the body

Refer to the description of a computer display for regression in Problem 5. 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). The data are based on information from The Merck Manual (a commonly used reference in medical schools and nursing programs).
(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?
(c) What is the value of the sample correlation coefficient r?
(d) What percentage of the variation in y can be explained by the corresponding variation in x and the least-squares line? What percentage is unexplained?

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