Summarize the data with appropriate descriptive statistics

Reference no: EM131423408

Bicycle accidents and alcohol. In the United States approximately 900 people die in bicycle accidents each year. One study examined the records of 1711 bicyclists aged 15 or older who were fatally injured in bicycle accidents between 1987 and 1991 and were tested for alcohol. Of these, 542 tested positive for alcohol (blood alcohol concentration of 0.01% or higher).

(a) Summarize the data with appropriate descriptive statistics.

(b) To do statistical inference for these data, we think in terms of a model where p is a parameter that represents the probability that a tested bicycle rider is positive for alcohol. Find a 99% confidence interval for p.

(d) In this study 386 bicyclists had blood alcohol levels above 0.10%, a level defining legally drunk in many states at the time. Give a 99% confidence interval for the proportion who were legally drunk according to this criterion.

Reference no: EM131423408

Questions Cloud

Evaluate and integrate appropriate construction : ASSIGNMENT - CONSTRUCTION SYSTEMS - Identify appropriate construction, environmental and technological systems for application in the design of a medium scale, clear span project

Write a newspaper column for the wall street journal : Write a newspaper column for the Wall Street Journal in the Technology section. This article will be three to five (3-5) pages and contain at least three (3) 2"x 2" images addressing some aspect of your material (but no more than five [5] images)...

Construct confidence interval for true proportion of times : Collectively, the dogs correctly identified the cancer sample in 110 of these trials. Construct a 95% confidence interval for the true proportion of times these dogs will correctly identify a lung cancer sample.

Design process and a concurrent design process : Explain the difference between a series design process and a concurrent design process. Include examples that illustrate your explanation.

Summarize the data with appropriate descriptive statistics : To do statistical inference for these data, we think in terms of a model where p is a parameter that represents the probability that a tested bicycle rider is positive for alcohol. Find a 99% confidence interval for p.

What does it mean for a company to thin its inventories : What does it mean for a company to "thin" its inventories? How would such a business practice aid a company during an economic recession?

Discuss the intrinsic and extrinsic rewards provided by job : Write a 1,050- to 1,400-word paper that identifies and addresses the following: The intrinsic and extrinsic rewards provided by the job. The satisfaction and motivational result of those rewards

Describe the sources of data needed to conduct the measures : Health plans and physicians must ensure they are meeting standards set by the accreditation agencies, such as NCQA. As a physician practice manager for Dr. Jones, you have just conducted a mock survey of the patient chart data. The data shows that..

Discuss the strengths of the qualitative evidence presented : Discuss the strengths and limitations of the quantitative and/or qualitative evidence presented. Demonstrate your ability to explain the microeconomic relationships between the issues presented.

User Account

All Pages