Homework 2

# Homework 2 - Jacob Pugh Homework 2...

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Jacob Pugh Homework 2 1. (A) (14.16/1.91)*-.948=-7.246 (B) The slope tells me that the more fuel that is used the temperature will drop because the slope in negative. (C) 47=43.98+7.246X x=.417 2. (A) The more copiers there are the longer the services take. (B) Yes using the regression equation you can estimate service time for a location that has 12 copiers driven by a single server. (C) 11.5+(24.6*6)=159.1 3. (A) There is a direct correlation between starting salary and the college GPA. As the students GPA goes up so does there starting salary. The percentage is 98% that can be
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Unformatted text preview: attributed to college GPA. (B) sqrt(.83)=.911 4. (A) The home’s size should be the predictor and the price should the response. The homes size will determine how much it is worth. The bigger the house the more it is worth. (B) There is a positive correlation. There are more data points above the line because of two data points that are a lot lower than the rest bringing the average down. Most of the data points are close to the line. 30 25 20 15 10 200 180 160 140 120 100 C2 C1 Scatterplot of C1 vs C2 (C) c1=62.92+4.732 c2 R^2=.747 (D) x=177.43 5....
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• Spring '15
• Statistics, Harshad number, data points, Correlation and dependence, College GPA, Jacob Pugh

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