Graded Homework 13

Graded Homework 13 - Graded Homework 13 You have submitted...

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Graded Homework 13 You have submitted this Homework 2 times (including this time). You may submit this Homework a total of 40 times and receive full credit. This homework will be due October 14 at 3am. This quiz covers the introduction to simple linear regression, material that can be found in your course packet on pages 65-69. Question #1 This is the Odometer Reading example on slide 8 (page 66) of your course packet. Notice, however that the price column has different values, so you will get different results than the ones in the course packet. A car dealer wants to find the relationship between the odometer reading and the selling price of used cars. A random sample of 100 cars is selected, and the data recorded. The necessary data is here . Find the regression line. 1. The value of is 36009.45 = 36009.45 . 2. The value of is 14822.82 = 14822.82 . 3. The value of S x 2 is 43528689.66 = 43528689.66 . 4. The value of cov(x,y) is ( Note that what excel gives you in a covariance matrix is population covariance and here you need sample covariance. When you get covariance from the excel matrix, multiply it by n and divide by n-1 to get sample
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Graded Homework 13 - Graded Homework 13 You have submitted...

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