Calculate the margin of error for proportion of all adults

Assignment Help Basic Statistics
Reference no: EM132158925

A polling company conducts an annual poll of adults about political opinions. The survey asked a random sample of 2160 adults whether they think things in the country are going in the right direction or in the wrong direction.49?% said that things were going in the wrong direction. Complete parts a and b below.

a) Calculate the margin of error for the proportion of all adults who think things are going in the wrong direction for 95?% confidence.

b) Explain what this margin of error means.

Reference no: EM132158925

Questions Cloud

What are the possible values of x : What are the possible values of X? Give them as a comma-separated list in increasing order. And what are their probabilities?
How cool ninjas and how they would like to become a ninja : Ninja Academy Ninjas are awesome! Your friend has not stopped talking about how cool ninjas and how they would like to become a ninja.
Samples would the sample mean iq : From which of the following samples would the sample mean IQ be more likely to be greater than 105?
Discuss possible improvements to the interface : Write down what first comes to mind regarding what is good and bad about how you worked with the tool.
Calculate the margin of error for proportion of all adults : a) Calculate the margin of error for the proportion of all adults who think things are going in the wrong direction for 95?% confidence.
What tools were used to get that program running : We use a number of basic tools to convert our code files into something actually running in the machine.
How long does it take for the monkey to reach the top : Every minute, the monkey climbs upward three feet but slips back two. How long does It take for the monkey to reach the top?
Write javascript code to do the following things based : Write JavaScript code to do the following things based on the demos we did in class.
Sampling distribution of sample means : Find the mean and standard deviation of a sampling distribution of sample means with sample size nequals =49.

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!

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