# Chapter 6 - Dustin Paluch Chapter 6 bookwork 6.5 List the...

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Dustin Paluch Chapter 6 bookwork 6.5 List the four possible results of the combinations of decisions and true states of nature for a test of hypothesis. 1 2 3 4 6.13 Calories in school lunches 6.14 Libor interest rate. H : μ = 863 H : μ = 5.40 H : μ < 863 H : μ < 5.40 6.20 A random sample of 100 observations from a population with a standard deviation of 60 yielded a sample mean of 110. a. Test the null hypothesis that μ = 100 against the alternative hypothesis that μ > 100 using α = .05. 1 H : μ = 100 2 H : μ > 100 3 Use z = χ - μ ̅ 4 Assumptions: None needed for this problem since CLT applies 5 Reject null hypothesisbecause n = 100 6 z = 110-100 and CLT applies 60/√100 z = 1.67 7. a 1.67 is more than 1.645 Reject null hypothesis 1.67 7. b There is enough evidence to reject the null hypothesis that the mean is 100 at α = .05 b. Test the null hypothesis that μ = 100 against the alternative hypothesis that μ ≠ 100 using α = .05. 1

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## This note was uploaded on 04/26/2011 for the course EVERYTHING 101 taught by Professor Variety during the Spring '11 term at Saint Louis.

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Chapter 6 - Dustin Paluch Chapter 6 bookwork 6.5 List the...

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