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

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
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
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.

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.

Ask a homework question - tutors are online