User Account

All Pages

Find a ninty percent confidence interval and interpret it

Assignment Help Basic Statistics
Reference no: EM131793001

Confidence in Public Schools

A 2012 Gallup Poll reported that only 581 out of a total of 2004 U.S. adults said they had a "great deal of confidence" or "quite a lot of confidence" in the public school system.

This was down 5 percentage points from the previous year. Assume the conditions for using the CLT are met.

a. Find a 99% confidence interval for the proportion that express a great deal of confidence or quite a lot of confidence in the public schools, and interpret this interval.

b. Find a 90% confidence interval and interpret it.

c. Find the width of each interval by subtracting the lower proportion from the upper proportion, and state which interval is wider.

d. How would a 95% interval compare with the others in width?

Reference no: EM131793001

Questions Cloud

Discuss write-offs and reinstatements related to customer : Further assume that accounts receivables are only affected by sales to customers, collections from customers, bad debt expense, write-offs
What are the tax consequences of the stock redemption : In the current year, Tan Corporation redeems 300 shares of Jacob's stock for $320,000. What are the tax consequences of the stock redemption to Jacob
What is a functional strategy : What is a functional strategy? What are stability strategies in business? What are the pros and cons of these strategies?
What is the amount of depreciation for the second full year : What is the amount of depreciation for the second full year, during which the machine was used 5,000 hours
Find a ninty percent confidence interval and interpret it : Find the width of each interval by subtracting the lower proportion from the upper proportion, and state which interval is wider.
Prepare a paper that defines emotional intelligence : Prepare a paper that defines and describes emotional intelligence. Additionally, detail the value of EI possession among health care leaders.
How does an encumbrance affect expenses and expenditures : How does an encumbrance affect expenses and expenditures. What is the impact of encumbrance accounting on a governmental budget
Record the sale of the equipment : Computer equipment (office equipment) purchased 6 1/2 years ago for $170,000, Record the sale of the equipment
Explain the key elements of project management : Explain to them the key elements of project management and its relationship to human resources management (HRM).

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