practice - AK/AS/MATH 1131 3.0 This is NOT Assignment 3 as...

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AK/AS/MATH 1131 3.0 This is NOT Assignment 3 as I cannot assign it until the strike is over. These are questions that Assignment 3 will be covering. It is basically Ch 6 to 9 material. We are already in Ch 8. So, you should be able to do some of the questions. If you cannot do it yet, don’t worry because we will be covering them once the strike is over. This will just keep you busy for a bit and continuously thinking about statistics even during your “non-scheduled” holiday! :) Question 1: A study is being planned to estimate the mean number of inches that trees will grow per year in a forest. The analysts wish to have 90% confidence and want to estimate the mean within ± 0 . 20 inch. Assumed the population standard deviation is 0.8 inch. What size sample is needed for this study? Question 2: A Honda dealership recently stated in an advertisement that Honda owners average more than 85000 miles before trading in or selling their Hondas. To test this, an independent agency selected a sample random sample of 80 Honda owners who have either
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This note was uploaded on 12/22/2010 for the course MATH Math 1131 taught by Professor Wong during the Fall '10 term at York University.

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practice - AK/AS/MATH 1131 3.0 This is NOT Assignment 3 as...

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