Question

7. O Question Details The following Minitab display gives information regarding the relationship between the body weight of a child Gin klograms) and the metabolic rate of the child in 100 kcal/ 24 hr). Coef 0.870 .39701 SE Coef 0.4248 0.02,78 2.06 0.8 Weight ?.?? 0.000 (a) Write out the least-squares equation. -8570 39701 b) For each 1 kilogram increase in weight, how much does the metabolic rate of a child increase? (Use S decimal places.) (e) What is the value of the correlation coefficient ? (Use 3 decimal places.) 983

Answer 1

( b ) answer :- 0.39701

( c ) answer :-

We know r squared = r² = 96.6% = 0.966

We have the relation between correlation (r) and r²

r= $\sqrt$ (r²) = $\sqrt$ (0.966) = 0.983