A manager at e-Bay wants to determine the current percentage of U.S. adults who now use the internet. How many adults should be surveyed in order to be 95% confident that the sample percentage is in error by no more than three percentage points? From a recent Pew Research Center poll, 73% of U.S. adults were found to use the web. If the Pew poll wasn’t available, how many adults should be surveyed?

Q: Since the patients agree to respond, is this considered a voluntary response sample? Justify your…

A: The objective of the question is to determine whether a sample where patients agree to respond can…

Q: Imagine a study comparing two groups:  undergrad vs. graduate students in terms of stress level.  To…

A: Provided that here is a study comparing two independent groups :  undergrad vs. graduate students in…

Q: Please check picture and answer with detail explaination

A: For any study, if an individual does not provide accurate results or is not willing to participate…

Q: Use critical thinking to list at least three things wrong with this survey. Explain fully using…

A: Given information: The results of online survey are given.

Q: b) Explain what this margin of error means. Select the correct choice below and fill in the answer…

A: It is given that in part (a), the margin of error ME = 0.025.

Q: Why does Texas have some of the lowest voter turnout statistics in the nation?

A:

Q: Conduct a test of independence to determine whether interest in leaving a current job for more money…

A:

Q: Construct a 90% confidence interval for the true difference between the mean amounts of time spent…

A:

Q: In one sentence, what is the difference between measure of health outcome occurrence and measures of…

A: We have to tell difference between measure of health outcome occurrence and measure of association.

Q: Explain in your own words what it means that a sample must be representative of the population.…

A: To explain about sample and population and to choose the best fit for the study on students of the…

Q: We live in a media age. At any time, we are able to access news at our fingertips. Think about how…

A: Sampling technique is critical to data analysis.

Q: If there are 36 data points in a set of data, what is the number of degree of freedom?

A: The basic definition of degree of freedom says that how many observation is free that is for how…

Q: A policeman believes that less than 40% of older drivers speed on highways, but a confidential…

A:

Q: A poll in Canada states that 67% of all respondents favor imposing the death penalty. The poll was…

A: Given that - A poll in Canada states that 67% of all respondents favor imposing the death penalty.…

Q: Would it be unusual for the sample mean to be less than 2 ?

A: Would it be unusual for the sample mean to be less than 2 ?

Q: YouTube is a popular destination on the internet; let's look at how YouTube usage is distributed…

A: Event Y denote that selected internet user has to use internet and Ai ,i=1,2,and 3 denote that…

Q: The Congressional Budget Office reports that 36% of federal civilian employees have a bachelor's…

A: Given, n=119, x=31, α=0.05 Then, p^=31119=0.260504

Q: In politics, marketing, etc. we often want to estimate a percentage or proportion p. One calculation…

A: Given: The proportion of people who like dark chocolate more than milk chocolate is 32% Margin of…

Q: How can you make your sampling method more reliable? (English Translation: List a way you could make…

A: Introduction: Sampling is done in practical life instead of a population census, in most of the…

Q: In an Adecco staffing survey of 1000, adults in the US, 140 said the salary was the most important…

A: From the provided information, The sample size is 1000 which is sufficiently large and out of which…

Q: An executive for a large company is considering a change to health insurance plans offered to the…

A: An executive for a large company is considering a change to health insurance plans offered to the…

Q: how importan

A: The five steps to sampling are: Identify the population. Specify a sampling frame. Specify a…

Q: Use these results from a USA Today survey in which 510 people choseto respond to this question that…

A:

Q: A hip-hop radio station asks its listeners to e-mail or text an answer to this question: “Do you…

A: We have to given that the  hip-hop radio station asks its listeners to e-mail or text an answer to…

Q: In politics, marketing, etc. we often want to estimate a percentage or proportion p. One calculation…

A:

Q: A professor using an open source introductory statistics book predicts that 15% of the students will…

A:

Q: he preeminent basketball philosopher Rasheed Wallace popularized the phrase, "Ball don't Lie." This…

A: p = 0.785 n = 177

Q: A lecturer would like to analyse whether there is a relationship between the country of origin of…

A: Population is the set of all units of interest. Sample is a subset of the population. In real life…

Q: Hypertension is when an adult is classified as having high blood pressure (above 130 systolic blood…

A: Answer  X =1219 n =3532

Q: Does the population proportion and sample proportion always have the same value?

A: The question is about parametric inference.Introduction :Population proportion :The value of…

Q: 1. In a survey, 957 internet users chose to respond to this question posted on ratemyprofessors.com:…

A: Part a: It is an observational study. (This is observations regarding the current scenario and not…

Q: A company is interested in seeing if the average call time to its call center is more than/greater…

A: A company is interested in seeing if the average call time to its call center is more than/greater…

Q: A contributor for the local newspaper is writing an article for the weekly fitness section. To…

A: The question is about confidence intervalGiven :Randomly selected no. of people who exercise in the…

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.