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Q. 1

The Practice of Statistics for AP
Found in: Page 799
The Practice of Statistics for AP

The Practice of Statistics for AP

Book edition 4th
Author(s) David Moore,Daren Starnes,Dan Yates
Pages 809 pages
ISBN 9781319113339

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Short Answer

A major agricultural company is testing a newvariety of wheat to determine whether it is more resistant tocertain insects than is the current wheat variety. The pro-portion of a current wheat crop lost to insects is 4%. Thus,the company wishes to test the following hypotheses:



Which of the following significance levels and sample sizes

would lead to the highest power for this test?

(a) n=200 and α=0.01

(b) n=400 and α=0.05

(c) n=400 and α=0.01

(d) n=500 and α=0.01

(e) n=500 and α=0.05

e) n=500,α=0.05

See the step by step solution

Step by Step Solution

Step 1: Given information

we have been given five options from which one is correct and the correct is (e)

Step 2: Simplify

While it is possible to derive the power of a given function

n=500 and α=0.05

The higher the sample size, the more power to detect differences.

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