User Account

All Pages

Confidence interval for the population proportion

Assignment Help Basic Statistics
Reference no: EM132581314

All work must be shown step by step. When using Excel for calculations list the Excel functions used and when they were used and explain how you arrived at the answers. Attach the Excel file.

The General Facility for Education Statistics reported that 47% of college students work to pay for tuition and living expenses. Assume that a sample of 450 colleges students was used in this study.

1. Provide a 95% confidence interval for the population proportion of college students who work to pay for tuition and living expenses.

2. Provide a 99% confidence interval for the population proportion of college students who work to pay for tuition and living expenses.

3. What happens to the margin of error as the confidence is increased from 95% to 99%? Explain why this makes sense.

4. Assume the GFES would like to re-do their study. If they want a 95% confidence interval with a margin of error for the population proportion within ±0.03, determine the sample size they should use. Use , the sample proportion from their previous study.

 

Reference no: EM132581314

Questions Cloud

How is responsible for a firm to be profitable : Which of the following current liability accounts is included in the adjustment of expenses to obtain cash flow from operating activities?
Organization innovation : How have you seen an organization's innovation, or lack of it, affect their success? What is the role of the manager in an organization's innovation?
What is the dividend payout ratio : If Net Income is $50,000, earnings per share is $1.50 and paid dividends is $0.30 per share. What is the dividend payout ratio? Provide the suitable example.
What is the return on common stockholder equity : What is the Return on Common Stockholder equity if Sales are $150,000, Net Income is $40,000, Dividends paid to preferred stockholders is $5,000
Confidence interval for the population proportion : All work must be shown step by step. When using Excel for calculations list the Excel functions used and when they were used
Compare and contrast the phase of the business cycle : Compare and contrast the phase of the business cycle. Compare and contrast expansionary and contractionary fiscal policy.
Determine what is the price earnings ratio : What is the Price earnings ratio if Sales is $150,000, Net Income is $35,000, Dividends paid to preferred stockholders is $5,000, dividends paid
Find what is the eps : What is the EPS if Sales are $200,000, Net Income is $64,000, Dividends paid to preferred stockholders is $12,000, dividends paid to Commons Stockholders
What is the probability that a household spends : A. What is the probability that a household spends more than $1600 per year on gasoline?

Reviews

Write a Review

Basic Statistics Questions & Answers

  Statistics-probability assignment

MATH1550H: Assignment:  Question:  A word is selected at random from the following poem of Persian poet and mathematician Omar Khayyam (1048-1131), translated by English poet Edward Fitzgerald (1808-1883). Find the expected value of the length of th..

  What is the least number

MATH1550H: Assignment:  Question:     what is the least number of applicants that should be interviewed so as to have at least 50% chance of finding one such secretary?

  Determine the value of k

MATH1550H: Assignment:  Question:     Experience shows that X, the number of customers entering a post office during any period of time t, is a random variable the probability mass function of which is of the form

  What is the probability

MATH1550H: Assignment:Questions: (Genetics) What is the probability that at most two of the offspring are aa?

  Binomial distributions

MATH1550H: Assignment:  Questions:  Let’s assume the department of Mathematics of Trent University has 11 faculty members. For i = 0; 1; 2; 3; find pi, the probability that i of them were born on Canada Day using the binomial distributions.

  Caselet on mcdonald’s vs. burger king - waiting time

Caselet on McDonald’s vs. Burger King - Waiting time

  Generate descriptive statistics

Generate descriptive statistics. Create a stem-and-leaf plot of the data and box plot of the data.

  Sampling variability and standard error

Problems on Sampling Variability and Standard Error and Confidence Intervals

  Estimate the population mean

Estimate the population mean

  Conduct a marketing experiment

Conduct a marketing experiment in which students are to taste one of two different brands of soft drink

  Find out the probability

Find out the probability

  Linear programming models

LINEAR PROGRAMMING MODELS

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!

Submit Assignment

Academics

Major Subjects

Majors

Get In Touch

whatsapp: +1-415-670-9521

Phone: +1-415-670-9521

Email: [email protected]

TERMS & POLICIES

HELP & SUPPORT

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