Chapter 8 Exercises wk 1

Chapter 8 Exercises wk 1 - used, possibly more. D. A more...

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Chapter exercises 1 Chapter 8 Exercises Justin Grunigen RES342 Mark Talbot University of Phoenix, North Florida Thursday, August 5, 2010
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Chapter exercises 2 Chapter 8 Exercises 8.48 A. Using Excel the sample mean is 346.40, with a standard deviation of 170.4. The 95% confidence level is +/- 74.64, or 271.67 and 421.04. B. Normality may be an issue because it is unknown whether the sample was selected at random. C. Not sure how to compute this problem, best guess is that the entire book would have to be
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Unformatted text preview: used, possibly more. D. A more reasonable requirement would be either an enlarged error limit, or a reduced confidence requirement. 8.64 A. 90%= 0.09994, 0.12256 (9.99%, 12.26%) B. Not sure how to check this. C. The VQR does not work well here because p is not near 0.50. D. This was one test that is referring to the entire population of popcorn kernels, therefore the sample may not be representative....
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Chapter 8 Exercises wk 1 - used, possibly more. D. A more...

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