Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Statistics and Probability Expert

Confidence Interval for single proportion.

A study was conducted to investigate drinking problems among college students. In 1983, a group of students were asked whether they had ever driven an automobile as drinking. In 1987 after legal drinking age was raised, a different group of college students were asked the same problem. The results are as follows.

Drove While Drinking

Year

Total

1983

1987

Yes

1250

991

2241

No

1387

1666

3053

Total

2637

2657

5294

Compute separately for 1983 and 1987, the 95% confidence interval for the proportion of students who had driven an automobile while drinking.

Statistics and Probability, Statistics

  • Category:- Statistics and Probability
  • Reference No.:- M921793

Have any Question? 


Related Questions in Statistics and Probability

1 how do quasi-experimental designs differ from true

1. How do quasi-experimental designs differ from true experiments? 2. Under what circumstances would a researcher use a quasi-experimental rather than an experimental design?

Question the volume of soft drink in plastic bottles is a

Question: The volume of soft drink in plastic bottles is a normal random variable with mean 16 ounces and standard deviation 0.6 ounces. a.) If a bottle is selected at random, find the probability that it contains more t ...

To test the model you will make 5 trades using 5 different

To test the model, you will make 5 trades using 5 different sets of data. You may define the parameters of the put call parity or use the following assumption for the parameters: Interest rate is 5%Transaction costs for ...

A national survey of 40000 adults in the us in 1992 found

A national survey of 40,000 adults in the US in 1992 found that 26% of adults were current smokers. A similar survey of 37,000 adults in the US in 1966 found that 43% of adults were current smokers. Construct a 95% confi ...

My variables are 1 sat scores between 600- 2400 2 gender 3

My variables are: 1. SAT scores between 600- 2400, 2. Gender, 3. Type of college attended, 1 for public university, 2 for private university, 4. Type of degree held: 1 for bachelors, 2 for masters, 3 for PHD or doctorate ...

Risk taking is an important part of investing in order to

Risk taking is an important part of investing. In order to make suitable investment decisions on behalf of their customers, portfolio managers give a questionnaire to new customers to measure their desire to take financi ...

A researcher collected sample data for women ages to the

A researcher collected sample data for women ages to. The sample had a mean serum cholesterol level (measured in mg/100 mL) of , with a standard deviation of. Assuming that serum cholesterol levels for women ages to are ...

1 why do researchers use factor analysis2 imagine that you

1. Why do researchers use factor analysis? 2. Imagine that you conducted a factor analysis on a set of variables that were uncorrelated with one another. How many factors would you expect to find? Why?

John is an avid fisherman and wants to know if there is a

John is an avid fisherman and wants to know if there is a correlation between the amount of time he spends fishing and the amount of fish he catches. He decided to keep track of the time he spent at the lake and the amou ...

Consider a normal population with mu 47 and sigma 6

Consider a normal population with μ = 47 and σ = 6. Calculate the z-score for an x of 46.3 from a sample of size 26. (Give your answer correct to two decimal places.

  • 4,153,160 Questions Asked
  • 13,132 Experts
  • 2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

WalMart Identification of theory and critical discussion

Drawing on the prescribed text and/or relevant academic literature, produce a paper which discusses the nature of group

Section onea in an atwood machine suppose two objects of

SECTION ONE (a) In an Atwood Machine, suppose two objects of unequal mass are hung vertically over a frictionless

Part 1you work in hr for a company that operates a factory

Part 1: You work in HR for a company that operates a factory manufacturing fiberglass. There are several hundred empl

Details on advanced accounting paperthis paper is intended

DETAILS ON ADVANCED ACCOUNTING PAPER This paper is intended for students to apply the theoretical knowledge around ac

Create a provider database and related reports and queries

Create a provider database and related reports and queries to capture contact information for potential PC component pro