Confidence interval for a proportion, Applied Statistics

The quick method for a confidence interval for a proportion uses

1106_quick method for a confidence interval.png

as an approximation for a 95% confidence interval.  The margin of error in this case is slightly larger than necessary.  Suppose that a simple random sample of 500 motorcycle registrations finds that 68 of the motorcycles are Yamahas.  Give a 95% confidence interval for the proportion of motorcycles in the population that are Yamahas using the quick method of chapter 3 and then by the more precise method of chapter 21.

Posted Date: 3/9/2013 12:19:03 AM | Location : United States







Related Discussions:- Confidence interval for a proportion, Assignment Help, Ask Question on Confidence interval for a proportion, Get Answer, Expert's Help, Confidence interval for a proportion Discussions

Write discussion on Confidence interval for a proportion
Your posts are moderated
Related Questions
Write down the symbols and unit for the following: mass, molar mass, molar and molarity Write down the relationship between mass and molar mass and show that the units match.

Lifts usually have signs indicating their maximum capacity. Consider a sign in a lift that reads "maximum capacity 1400kg or 20 persons". Suppose that the weights of lift-users are

1 A penny is tossed 5 times. a. Find the chance that the 5th toss is a head b. Find the chance that the 5th toss is a head, given the first 4 are tails.

Simple Random Sampling In Simple Random Sampling each possible sample has an equal chance of being selected. Further, each item in the entire population also has an equal chan

Modify your formulas from (1) to compute the price at time 0 of an American put option with the same contract speci cations in the binomial model. Report the price of the American

Explanation of standard deviation and variance Describe the importance of standard deviation and variance, what they calculate and why they are required. Importance of char

Example of discrete random variable: 1. What is a discrete random variable? Give three examples from the field of business. 2. Of 1000 items produced in a day at XYZ Manufa

In an agricultural experiment, we wish to compare the yields of three different varieties of wheat. Call these varieties A, B and C. We have a ?eld that has been marked into a 3 *

First Moment of Dispersion or Mean Deviation Mean deviation or the average deviation is the measure if dispersion which   is based upon all the items in a variable .It is the a