A researcher collected data on a random sample of 12 breakfast cereals. He recorded x = fiber
Question:
y = 17.42 + 0.62x
The sample correlation coefficient, r, is 0.23. The SE of b1 is 0.81. Also, se = 3.1.
(a) Find r2 and interpret r2 in the context of this problem.
(b) Suppose that a cereal has 2.63 grams of fiber/ounce and costs 17.3 cents/ounce. What is the residual for this cereal?
(c) Interpret the value of se in the context of this problem. That is, what does it mean to say that se = 3.1?
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Related Book For
Statistics For The Life Sciences
ISBN: 9780321989581
5th Edition
Authors: Myra Samuels, Jeffrey Witmer, Andrew Schaffner
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