Week 5 Final quiz

# Week 5 Final quiz - RES 342 Final Name: 1. A researcher...

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RES 342 Final Name: 1. A researcher risks a Type I error ______. a) Anytime H0 is accepted b) Anytime H1 is rejected c) Anytime H0 is rejected d) None of the of the above 2. If you are working on Z statistic one tail with α = 0.01 , what is the Z value a) 1.64 b) 1.87 c) 2.33 d) 1.28 3. The null and alternative Hypothesis are H0 < 300 H1 > 300 Level of significant α = .05 Sample Mean = 320 Standard Deviation = 24 n = 64 normal distribution p(lowe r) p(uppe r) z x mean std.dev .9500 .0500 1.64 359.48 320 24 a) Find the critical value b) What is the computed Z value ? 1.64 c) Do you reject or accept H0 ? Reject n X Z σ μ - =

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4. In regression analysis, independent variable a) Is the variable that is being predicted b) Is the variable that is being estimated c) Provides the basis for estimation d) All of the above e) None of the of the above 5. Which one of the following is not correct in describing the properties for correlation Coefficient a) If there is a strong positive relationship r will be close to +1 b) If there is no linear relationship or weak relationship, the value of r will be greater than 1
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## This note was uploaded on 10/12/2011 for the course BUSINESS 317 taught by Professor Jackhandy during the Spring '11 term at University of Phoenix.

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Week 5 Final quiz - RES 342 Final Name: 1. A researcher...

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