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homework7

# homework7 - Statistics 5021 Homework 7 There are 20 total...

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Statistics 5021 – Homework 7 There are 20 total points. This homework is due Thursday, April 28 in your lab section. In this homework, you will analyze datasets (preferably using R ). 1. Two numerical characteristics were measured for 18 countries. The first characteristic: mortality is the mortality rate from heart disease per thousand, and the second characteristic: consumption is the average per capita consumption of wine in liters. These data are available for download on Moodle in the file “wine.txt”. Our interest is to relate mortality with consumption using the simple linear regression model, where mortality is the response and consumption is the predictor. (a) Produce a scatter plot of the response versus the predictor. Based on this scatter plot, would a simple linear regression model be appropriate? (b) Instead of predicting mortality with consumption , consider predicting log( mortality ) with log( consumption ), where log() is the natural logarithm. Assuming that we read the dataset in as: wine = read.table("wine.txt")

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homework7 - Statistics 5021 Homework 7 There are 20 total...

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