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Beer and blood alcohol content: Many people believe that gender, weight, drinking habits, and many other factors are much more important in predicting blood alcohol content (BAC) than simply considering the number of drinks a person consumed. Here we examine data from sixteen student volunteers at Ohio State University who each drank a randomly assigned number of cans of beer. These students were evenly divided between men and women, and they differed in weight and drinking habits. Thirty minutes later, a police officer measured their blood alcohol content (BAC) in grams of alcohol per deciliter of blood (Malkevitc and Lesser, 2008). The scatterplot and regression table summarize the findings. BAC (grams per deciliter) 0.15- 0.10- 0.05- D 2 4 6 Cans of beer Intercept slope Estimate -0.0127 0.0180 (a) Describe the relationship between the number of cans of beer (x) and BAC (y). O weak, positive O moderate/strong, positive moderate/strong, negative O weak, negative (b) Write the equation of the regression line. Interpret the slope in context. The equation of the regression line is (please do not round): ŷ 8 I The interpretation of the slope is: O For each additional can of beer, BAC is expected to decrease by about .018 For each additional can of beer, BAC is expected to decrease by about .0127 For each additional can of beer, BAC is expected to increase by about .018 For each additional can of beer, BAC is expected to increase by about .0127

Beer and blood alcohol content: Many people believe that gender, weight, drinking habits, and many other factors are much more important in predicting blood alcohol content (BAC) than simply considering the number of drinks a person consumed. Here we examine data from sixteen student volunteers at Ohio State University who each drank a randomly assigned number of cans of beer. These students were evenly divided between men and women, and they differed in weight and drinking habits. Thirty minutes later, a police officer measured their blood alcohol content (BAC) in grams of alcohol per deciliter of blood (Malkevitc and Lesser, 2008). The scatterplot and regression table summarize the findings. BAC (grams per deciliter) 0.15- 0.10- 0.05- D 2 4 6 Cans of beer Intercept slope Estimate -0.0127 0.0180 (a) Describe the relationship between the number of cans of beer (x) and BAC (y). O weak, positive O moderate/strong, positive moderate/strong, negative O weak, negative (b) Write the equation of the regression line. Interpret the slope in context. The equation of the regression line is (please do not round): ŷ 8 I The interpretation of the slope is: O For each additional can of beer, BAC is expected to decrease by about .018 For each additional can of beer, BAC is expected to decrease by about .0127 For each additional can of beer, BAC is expected to increase by about .018 For each additional can of beer, BAC is expected to increase by about .0127

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Beer and blood alcohol content: Many people believe that gender, weight, drinking habits, and many other factors are much more important in predicting blood alcohol content (BAC) than simply considering the number of drinks a person consumed. Here we examine data from sixteen student volunteers at Ohio State University who each drank a randomly assigned number of cans of beer. These students were evenly divided between men and women, and they differed in weight and drinking habits. Thirty minutes later, a police officer measured their blood alcohol content (BAC) in grams of alcohol per deciliter of blood (Malkevitc and Lesser, 2008). The scatterplot and regression table summarize the findings. BAC (grams per deciliter) 0.15- 0.10- 0.05- 0 D moderate/strong, positive moderate/strong, negative 2 D 0 0 0 0 D Intercept slope 0 D 4 6 Cans of beer Estimate -0.0127 0.0180 a (a) Describe the relationship between the number of cans of beer (x) and BAC (y). O weak, positive O weak, negative (b) Write the equation of the regression line. Interpret the slope in context. The equation of the regression line is (please do not round): ŷ= + I 8 The interpretation of the slope is: For each additional can of beer, BAC is expected to decrease by about .018 For each additional can of beer, BAC is expected to decrease by about .0127 For each additional can of beer, BAC is expected to increase by about .018 O For each additional can of beer, BAC is expected to increase by about .0127
Transcribed Image Text:Beer and blood alcohol content: Many people believe that gender, weight, drinking habits, and many other factors are much more important in predicting blood alcohol content (BAC) than simply considering the number of drinks a person consumed. Here we examine data from sixteen student volunteers at Ohio State University who each drank a randomly assigned number of cans of beer. These students were evenly divided between men and women, and they differed in weight and drinking habits. Thirty minutes later, a police officer measured their blood alcohol content (BAC) in grams of alcohol per deciliter of blood (Malkevitc and Lesser, 2008). The scatterplot and regression table summarize the findings. BAC (grams per deciliter) 0.15- 0.10- 0.05- 0 D moderate/strong, positive moderate/strong, negative 2 D 0 0 0 0 D Intercept slope 0 D 4 6 Cans of beer Estimate -0.0127 0.0180 a (a) Describe the relationship between the number of cans of beer (x) and BAC (y). O weak, positive O weak, negative (b) Write the equation of the regression line. Interpret the slope in context. The equation of the regression line is (please do not round): ŷ= + I 8 The interpretation of the slope is: For each additional can of beer, BAC is expected to decrease by about .018 For each additional can of beer, BAC is expected to decrease by about .0127 For each additional can of beer, BAC is expected to increase by about .018 O For each additional can of beer, BAC is expected to increase by about .0127
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