In the weeks leading up to the election of a controversial public figure to political office, a pollingagency conducted in-person interviews with 1000 randomly selected eligible voters. Only 35 percentof these 1000 voters said they planned to vote for the controversial candidate. However, on electionday, when voters can make their selections anonymously and without having to reveal who theyvoted for to another person, the controversial candidate received the majority of the vote. Which ofthe following types of bias is most likely to have occurred in the polling agency's survey?(A) Nonresponse bias(B) Sampling bias(C) Selection bias(D) Response bias(E) Undercoverage bias

The objective of the question is to identify the type of bias that most likely occurred in the…

Answered: In the weeks leading up to the election…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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A famous online video game streamer made a quick survey whether his viewers are playing video games or not. Results showed that almost 100% said they play video games. What kind of bias was made? Selection Bias Survivorship Bias Confirmation Bias Preference Bias
An automotive service center would like feedback on its customer service. Each customer receives a printed card after they pay for services with a short survey on which customer service is ranked on a scale from 1 (least satisfied) to 5 (most satisfied). Customers can then choose to submit the card in a box on their way out of the store. The store manager finds that 140 cards were filled out in the past week, with an average customer satisfaction score of 2.47. Which type of bias is most likely to be present in the survey results? O This is undercoverage bias because some types of customers may not have received cards. O This is nonresponse bias because many customers may choose to not fill out the cards. O This is question wording bias because the customer service score levels may not be clear to customers. O This is response bias because customers may not be truthful about their experience with customer service. Mark this and return Save and Exit Next Submit 近

An email is sent to everyone at a school, encouraging students to participate in a school-wide survey for the chance to win a pair of concert tickets. A sample created from this method may suffer from which of these biases?
A 2015-2016 report stated that hiring over the past year of people with a bachelor's degree increased 8 %, for people with a PhD increased 28 %, and for people with an MBA decreased 25 %. This was based on a voluntary poll of all recent graduates who interacted with at least one of 350 career service centers on college campuses. The survey was answered by 7,500 graduates. What are potential sources of bias with this survey? Select all that apply. O Nonresponse bias O Response bias Sampling bias
A market research group is interested in estimating the market share of three airline companies, A, B and C, operating on a particular flight path. These three airlines are the only companies operating on this route. Airline B claim that they have 50% of the business with the remaining percentage shared equally amongst airlines A and C, i.e. 25% each. The market research group decide to carry out an independent study and question a random sample of 97 people visiting an airport on a particular day. Each person was given price, timetables and service details of flights on this route for each of the three airlines. Provided with this information they were asked to select their airline of choice.The survey revealed the following observed frequencies Airline A - 26 Aurline B - 49 Airline C - 22 Test if there is any evidence to suggest that the airline's claim is incorrect, at significance level α = 0.05. Complete the test by answering the following questions : Which of the following is the…
According to the National Institute on Alcohol Abuse and Alcoholism (NIAAA), and the National Institutes of Health (NIH), 42% of college students nationwide engage in “binge drinking” behavior, having 5 or more drinks in one occasion during the past two weeks. A college president wonders if the proportion of students enrolled at her college that binge drink is actually different than the national proportion. In a commissioned study, 364 students are selected randomly from a list of all students enrolled at the college. Of these, 136 admitted to having engaged in binge drinking. Calculate the statistic for this sample. Calculate the standard error for this sample. Verify that we can use a normal distribution for this sample. By hand calculate a 90% confidence interval for the proportion of all students at this college that engage in binge drinking. Show all work. Interpret the results of your confidence interval in the context of the…
46% of all statistics classes require an advanced calculator and 38% require the use of a computer that has statistical software. Of the classes that require an advanced calculator, 18% also require the use of a computer. If a statistics course is selected at random find A. P(Advanced Calculator) = [ Select ] ["0.57", "0.38", "0.18", "0.46"] B. P(Statistical Software) = [ Select ] ["0.38", "0.57", "0.46", "0.18"] C. P(Require an Advanced Calculator and Statistical Software) = [ Select ] ["0.1259", "0.1748", "0.0828", "0.8335"] D. P(Require an Advanced Calculator GIVEN Require Statistical Software) = [ Select ] ["0.3515", "0.18", "0.2184", "0.9716"]
A study was done to determine whether morning exerciseimproved grades among all students at a community college. The softball coach in charge of the study handed out a survey to hergirls’softballteam in order to gather the data. Each student was asked to record two things:(1) how much exercise they did in the morning before class, and (2) their current grade point average. a.Identify the sampling method. b.Identify what bias is present in the survey. c.Determine whether the study is an experiment or an observational study d.Identify a major problem with the study.

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