# HW11 - Stat 3011 Homework 11 Stat 3011: Homework 11 Due:...

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Stat 3011 Homework 11 Stat 3011: Homework 11 Due: Tuesday, April 28th Assigned Exercises: 1. 3.26 (page 125) NOTE: Be sure to use the correct units for the observations. For instance, a 10,000 square foot house that sells for \$200,000 has x = 10 and y = 200. (a) - (d) book parts a through d (b) If a home owner added 500 square feet to their existing home, by how much would you expect its selling price to increase? HINT: Recall the deﬁnition of the slope. 2. 3.32 (page 126) 3. 3.38 parts a and c (page 127) HINT: For part a, consider this. Instead of interpreting the slope in terms of the expected change in scoring corresponding to an increase of 1 in batting average (which is not possible since batting averages cannot be more than one), interpret the slope in terms of an increase of 0.1 in batting average. 4. 3.40 (page 127) Directions for Rweb are given on the next page. (a) Construct a scatterplot in Rweb. Comment on what you see in the scatterplot. (b) Fit and write down the least squares regression line (use Rweb). Be sure to specify

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## This note was uploaded on 10/02/2011 for the course STAT 3011 taught by Professor Wang,zhan during the Spring '09 term at Minnesota.

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HW11 - Stat 3011 Homework 11 Stat 3011: Homework 11 Due:...

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