Understanding Basic Statistics 6th Edition by Charles Henry Brase,Corrinne Pellillo Brase

Exercise 79

Physiology: Children The following problem is based on information taken from the paediatrics section of The Merck Manual (a commonly used reference in medical schools and nursing programs). Let x be the body weight of a child (in kilograms), and let y be the metabolic rate of the child (in 100 kcal/24 h).

x = 100; y = 47.1; x 2 = 1552; y 2 = 327.83; xy = 710.3.
(a) Verify that S e 0.518.
(b) Verify that r 0.984. Test that is positive. Use = 0.01.
(c) Verify that b 0.402. Test that is positive. Use = 0.01.
(d) Verify that
. Find a 90% confidence interval for the predicted metabolic rate for a child weighing 10 kg.