BSB123 Tutorial 07 - Sampling distributions

BSB123 Tutorial 07 - Sampling distributions - Tutorial 7:...

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Tutorial 7: Sampling Distributions Reading Topic* Chapter Sections Page 7 7 7.1 7.2 7.3 198 - 211 Section A (Attempt before tutorial - Solutions provided on Blackboard) Problem 7.1 page 208 Problem 7.4 page 208 Problem 7.10 page 211 Problem 7.13 page 211 Problem 7.18 page 212 Problem 7.35 page 222 Problem 7.36 page 222 Problem 7.46 page 222 Section B (Worked through in class - Solutions provided in class) Problem 7.2 page 208 Given a normal distribution with µ = 50 and σ = 5, if you select a sample of n = 100 what is the probability that f8e5 X is (a) Less than 47? (b) Between 47 and 49.5? (c) Above 51.1? (d) There is a 35% chance that X is above what value? Problem 7.51 page 222 - 223 Mutual funds reported modest earnings in the first quarter of 2004. International funds, which are historically slightly more volatile than US funds, had a mean return of 5.13% (Michael J. Martinez, ‘Mutual-fund returns minimal in first quarter’, Cincinnati.com, 3 April 2004). Assume that the returns for international funds were distributed as a normal random
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This note was uploaded on 04/05/2010 for the course BUSINESS 11 taught by Professor 11 during the Spring '10 term at University of Hawaii, Manoa.

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BSB123 Tutorial 07 - Sampling distributions - Tutorial 7:...

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