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Homework4

# Homework4 - temperatures The data were coded and recorded...

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Homework 4: Reading 10.13, 11.1-11.4 Due next Thursday (2/17/2011) #1: Exercise 10.71. The null hypothesis is 15 . 1 : 2 0 = σ H and the alternative hypothesis is 15 . 1 : 2 1 σ H . This is a one-sided test and we can compare the chi-square statistic with a threshold value above which there is an area of 0.05 for the chi-square distribution. #2: A study was made on the amount of converted sugar in a certain process at various
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Unformatted text preview: temperatures. The data were coded and recorded as follows: Temperature (x) Converted Sugar (y) 1 8.1 1.1 7.8 1.2 8.5 1.3 9.8 1.4 9.5 1.5 8.9 1.6 8.6 1.7 10.2 1.8 9.3 1.9 9.2 2 10.5 (a) Estimate the linear regression line; (b) Estimate the mean amount of converted sugar produced when the coded temperature is 1.75; (c) Evaluate s 2 ....
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