# HW3 - Stat 133 HW 3(10 pts Name soln Please read and follow...

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Stat 133 HW 3 (10 pts) Name soln Please read and follow the information in the “Homework Policies” document posted in the Homework section of Carmen. It’s your responsibility to know how to avoid academic misconduct. Please don’t add extra space to this assignment. Do all graphs in Excel, not by hand! 1. Do problem 2.54 on page 100 in your book. In each case BRIEFLY explain what the statistical issue is in terms of the value, use, or interpretation of the correlation. a. Correlation only measures relationship between two quantitative variables. b. R can only be between -1 and 1. c. Switching X and Y does not affect correlation. 2. Using the beer data from HW 1 (see Carmen for the beer data set): a. Make a scatterplot of carbohydrates (X) vs. percentage alcohol (Y) for the 86 brands of beer. Include it here.

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b. Find the correlation AND INTERPRET. Correlation = .287 It is a positive strong linear relationship between carbohydrates and percentage of Alcohol.
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HW3 - Stat 133 HW 3(10 pts Name soln Please read and follow...

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