Reference no: EM131826804
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.23 The scatterplot and regression table summarize the findings.
(a) Describe the relationship between the number of cans of beer and BAC.
(b) Write the equation of the regression line. Interpret the slope and intercept in context.
(c) Do the data provide strong evidence that drinking more cans of beer is associated with an increase in blood alcohol? State the null and alternative hypotheses, report the p-value, and state your conclusion.
(d) The correlation coefficient for number of cans of beer and BAC is 0.89. Calculate R2 and interpret it in context.
(e) Suppose we visit a bar, ask people how many drinks they have had, and also take their BAC. Do you think the relationship between number of drinks and BAC would be as strong as the relationship found in the Ohio State study?
|
What is the probability that in a random sample
: What is the probability that in a random sample of 500 adult Americans less than 38% believe that marriage is obsolete?
|
|
Identity some suitable static analysis tools for a language
: Identity some suitable static analysis tools for a language that you know. Determine the cost, availability, and ease of use of these tools.
|
|
Discuss about the price of pharmaceuticals
: In 1983, Congress passed the Orphan Drug Act, which gave firms that developed pharmaceuticals to treat rare diseases.
|
|
Examine the current values of all environment variables
: Examine the current values of all environment variables on a system you use. If possible, determine the use for some of these values.
|
|
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
|
|
Define inelastic demand for one of grady pickups
: Two customers, Fred and Lamont, walk into Grady's Used Pickups. Who probably has a more inelastic demand for one of Grady's pickups.
|
|
What are the major components of a management control system
: Merchandise purchases for September: $480,000, 30% paid in month of purchase, 70% paid in next month. What the major components of a management control system
|
|
Describes a reassembly algorithm that results in fragments
: Describes a reassembly algorithm that results in new fragments overwriting any overlapped portions of previously received fragments.
|
|
Discuss the various problem and issue and possible solutions
: Discuss the various problems and issues, possible solutions, and limitations with supporting this requirement.
|