Lab_exercises_-_Calculating_Powers

# Lab_exercises_Calc - Exercises 1 Suppose you want to test H0 = 26 against Ha 26 using = 0.05 A random sample of size 30 will be drawn from the

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Exercises 1. Suppose you want to test H 0 : μ = 26 against H a : μ 26 using α = 0.05. A random sample of size 30 will be drawn from the population under consideration. Assume the population has a standard deviation equal to 1.4. (a) Find the value of β associated with the test if the true mean is 25.8. (b) Find the power of the test. Outline of solution to (a) Critical values in terms of x are = 25.5 and 26.5 β = P(25.5 < x < 26.5 | µ = 25.8) = P(-1.17 < z <2.73) =0.875 2. Suppose you want to test H 0 : μ = 72 against H
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## This note was uploaded on 09/10/2009 for the course STAT 217 taught by Professor Dan during the Winter '07 term at University of Calgary.

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