Statistics Homework Solutions 8

Statistics Homework Solutions 8 - 1. (a) The mean will be...

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8 CHAPTER 1 19. (a) 0 5 10 15 0 10 20 30 40 50 60 x y The relationship is non-linear. (b) x 1.4 2.4 4.0 4.9 5.7 6.3 7.8 9.0 9.3 11.0 ln y 0.83 1.31 1.74 2.29 1.93 2.76 2.73 3.61 3.54 3.97 0 5 10 15 0.5 1 1.5 2 2.5 3 3.5 4 x ln y The relationship is approximately linear. (c) It would be easier to work with x and ln y , because the relationship is approximately linear. Supplementary Exercises for Chapter 1
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Unformatted text preview: 1. (a) The mean will be divided by 2.2. (b) The standard deviation will be divided by 2.2. 3. (a) False. The true percentage could be greater than 5%, with the observation of 4 out of 100 due to sampling variation....
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