Sixteen student volunteers at Ohio State University drank a randomly assigned number of cans of beer.
Thirty minutes later, a police officer measured their blood alcohol content (BAC) in grams of alcohol per deciliter of blood.
Given is a scatterplot displaying the relationship between BAC and number of cans of beer as well as the linear model for predicting BAC.
If the student who drank the most number of beers (9 beers) actually had a BAC of 0.15 grams/deciliter, how would the strength of the association change?
|
A. |
Stay the Same |
|
B. |
Decrease |
|
C. |
Increase |
Homework Answers
C.
Increase
As because of that point the slope of the fitted line slightly increases.
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Sixteen student volunteers at Ohio State University drank a randomly assigned number of cans of beer....
2) Many people believe that gender, weight, drinking habits, and many other factors are much more...
2) 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...
Use the following to answer Questions 12-13: How well does the number of beers a student...
Use the following to answer Questions 12-13: How well does the number of beers a student drinks predict his or her blood alcohol content? Sixteen student volunteers at The Ohio State University drank a randomly assigned number of cans of beer. Thirty minutes later, a police officer measured their blood alcohol content (BAC). A scatterplot of the data appears below: The scatterplot above shows
Exercise 2. [Data analysis, requires R] For this questions use the bac data set from the...
Exercise 2. [Data analysis, requires R] For this questions use the bac data set from the openintro library. To access this data set first install the package using install.packages ("openintro") (this only needs to be done once). Then load the pack- age into R with the command library(openintro). You can read about this data set in the help menu by entering the command ?openintro or help(openintro). Many people believe that gender, weight, drinking habits, and many other factors are much...
The Student Government Association at Middle Carolina University wanted to demonstrate the relationship between the number...
The Student Government Association at Middle Carolina
University
wanted to demonstrate the relationship between the number of beers
a
student drinks and his or her blood alcohol content (BAC). A
random
sample of 18 students participated in a study in which each
participating student was randomly assigned a number of 12-ounce
cans
of beer to drink. Thirty minutes after they consumed their
assigned
number of beers, a member of the local sheriff’s office measured
their
blood alcohol content. The sample...
2) 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...
Exercise 2. [Data analysis, requires R] For this questions use the bac data set from the openintro library. To access this data set first install the package using install.packages ("openintro") (this only needs to be done once). Then load the pack- age into R with the command library(openintro). You can read about this data set in the help menu by entering the command ?openintro or help(openintro). Many people believe that gender, weight, drinking habits, and many other factors are much...
The Student Government Association at Middle Carolina
University
wanted to demonstrate the relationship between the number of beers
a
student drinks and his or her blood alcohol content (BAC). A
random
sample of 18 students participated in a study in which each
participating student was randomly assigned a number of 12-ounce
cans
of beer to drink. Thirty minutes after they consumed their
assigned
number of beers, a member of the local sheriff’s office measured
their
blood alcohol content. The sample...
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