The researcher wishes to be accurate within 2% of the true

Assignment Help Basic Statistics
Reference no: EM13240263

A researchers wish to estimate, with 95% confidence, the proportion of people who own a home computer. A previous study shows the 40% of those interviewed had a computer at home. The researcher wishes to be accurate within 2% of the true proportion. Find the minimum sample size necessary?

Reference no: EM13240263

Questions Cloud

Create a probability distribution table and a cumulative : If you choose 12 vehicles at random, what is the probability that more than half(that is, 7 or more) carry just one person?)create a probability distribution table and a cumulative distribution.
A manufacturer of small appliances purchases coffeepot : A manufacturer of small appliances purchases coffeepot handles from an outside vendor. If a handle is cracked, it is considered defective and can't be used
Find the magnitude of potential difference between plates : Two parallel plates, each of area 7.00 cm^2, are seperated by 3.50 mm of water, What is the magnitude of the potential difference between the plates
Determine the mid-point value : Analysis is designed to determine if the sheet manufacturing process is producing sheets of the material to the accepted specifications and determine the mid-point value (the value directly half-way between the max and the min) for each row and col..
The researcher wishes to be accurate within 2% of the true : A researchers wish to estimate, with 95% confidence, the proportion of people who own a home computer. A previous study shows the 40% of those interviewed had a computer at home.
State what is g for the reaction at the specific temperature : At 700 K, the equilibrium constant for the reaction CO(g) + H2O(g) ? CO2(g) + H2(g) is 5.10. What is G for the reaction at the specific temperature
You tested to see if there is a need to use those additional : You are conducting a study on what socio-demographic factors could be behind the behavioral problems of students. You are looking at how many times a student was sent to detention. You have information on race, gender, household median income, single..
Find the magnetic moment of the rotating disk : A circular plastic disk of radius R, carrying a surface charge density? = ks, is rotating at constant angular velocity, Find the magnetic moment of the rotating disk
Find the mean of the remaining observation : How can i find the mean of the remaining observation if the mean of 30 observation is 5

Reviews

Write a Review

Basic Statistics Questions & Answers

  Determine correlation coefficient

Compute the 95% confidence and prediction intervals for values of y for X = 40. Determine correlation coefficient, Interpret.

  Probability of randomly selected bag having chocolate chips

The number of choco chips in an 18 ounce bag of chocolate chip cookies is approximately normally distributed with a mean of 1256 and a standard deviation of 129 chips, What is the probability that a randomly selected bag contains fewer than 1000 c..

  Inferring about population means

In random samples of 12 from each of two normal populations, we found the following statistics: Describe what happens when the sample standard deviations get larger.

  Find five number summary for the midterm exam

The student with the 92 found a grading error on her exam and her correct grade was 95. There were no other grading errors. After correcting this student's paper, the five number summary for the midterm exam will be

  Percentage of sample means

A final exam in Statistics has a mean of 73 with a standard deviation of 7.73. Assume that a random sample of 24 students is selected and the mean test score of the sample is computed. What percentage of sample means are less than 70?

  Employee turnover as the variables

How much of the variation in the dependent variable would be explained by the independent variable in this situation? Use job satisfaction and employee turnover as the variables for this problem.

  Computing confidence interval for mean

The standard deviation of test scores on a certain achievement test is 11.4. A random sample of 100 scores on this test had a mean of 71.2. Based on this sample, find a 90% confidence interval for the true mean of all scores. Complete the below:

  Computing critical region and critical values for z

Determine the critical region and critical values for z that would be used to test the null hypothesis at the given level of significance, as described in each of the following:

  Calculate the sample standard deviation for each method

Public transportation and the automobile are 2 methods an employee can use to get to work each day. Samples of times recorded for each method are shown. Times are in minutes.

  Does random variable have binomial distribution

Let the random variable X represent the number of defective DVD players among 200 randomly selected DVDs of this type. Does the random variable X have a binomial distribution or a Poisson distribution?

  Statistics right-tail hypothesis-t-statistic

The mean score on a standardized psychology test is supposed to be 50. Believing that a group of psychologists will score higher, we test a random sample of 11 psychologists.

  Construct three sigma p-chart

The results of inspection of DNA samples taken over the past 10 days are given below. Sample size is 100.

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd