The survey has bias. (a) Determine the type of bias. (b) Suggest a remedy.A polling organization conducts a study to estimate the percentage of households that have high-speed Internet access. It mails a questionnaire to 1313 randomly selected households across the country andasks the head of each household if he or she has high-speed Internet access. Of the 1313 households selected, 11 responded.(a) Which of these best describes the bias in the survey?O Response biasO Sampling biasO Undercoverage biasO Nonresponse bias(b) How can the bias be remedied?OA. The polling organization should mail the questionnaire to a greater number of households.OB. The polling organization should only select households in a single state.OC. The polling organization should mail the questionnaire to each person in the households.OD. The polling organization should try contacting households that do not respond by phone or face-to-face.

A poling organization wants to estimate the percentage of households that have high speed internet…

Answered: The survey has bias. (a) Determine the…

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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Each of eighty-four middle school students was asked, "What is your favorite subject?" Here are the results: • Among the girls surveyed, 15 chose "Social Studies", 6 chose "Science", 11 chose "English", and 10 chose "Math". • Among the boys surveyed, 16 chose "Social Studies", 5 chose "Science", 12 chose "English", and chose "Math". Construct a two-way frequency table for the data: Girls Boys Social Studies Sclence English Math
Bank of America's Consumer Spending Survey collected data on annual credit card charges in seven different categories of expenditures: transportation, groceries, dining out, household expenses, home furnishings, apparel, and entertainment. Using data from a sample of 42 credit card accounts, assume that each account was used to identify the annual credit card charges for groceries (population 1) and the annual credit card charges for dining out (population 2) Using the difference data, the sample mean difference was d = $850, and the sample standard deviation was så = $1,123. a. Formulate the null and alternative hypotheses to test for no difference between the population mean credit card charges for groceries and the population mean credit card charges for dining out. Ho : μα ♦ Select your answer - Ha d + - Select your answer - b. Use a = = 0.05 level of significance. Can you conclude that the population means differ? - Select your answer - ◆ What is the p-value? (to 6 decimals) c.…
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A Statistics Canada researcher selects (at random) 10 apartments in one apartment building. The researcher then interviews all the residents in each of the 10 apartments selected. Which type of sampling did this researcher use?
the grade-point averages of 20 college seniors selected at random from a graduating class are as follows:3.2, 1.9, 2.7, 2.4, 2.8, 2.9, 3.8, 3.0, 2.5, 3.3, 1.8, 2.5, 3.7, 2.8, 2.0, 3.2, 2.3, 2.1, 2.5, 1.9. calculate the standard deviation.
Need help with a review statistics question
A De Anza student decided to determine whether the percent of men who participate in sports at De Anza College is higher than the percent of women who participate in sports at De Anza College. Out of 67 women, 12 said they participate in sports. 13 of the 45 men surveyed said they participate in sports. a. ) What are the type I and type II errors? Explain them in the context of this problem.b. ) Describe the sample statistics in words. What is the distribution of the sample statistic? Explain why you used this distribution.Can someone please help me make sense of these questions?
(6) A student surveys some students on campus in the evening and finds that 16 out of 20 of the students she interviewed are part time students. She uses the data to estimate the percentage of all students who are part time. What type of bias is present in her sample?
Hospitals In a study of births in New York State, data were collected from four hospitals coded as follows: (1) Albany Medical Center; (1438) Bellevue Hospital Center; (66) Olean General Hospital; (413) Strong Memorial Hospital. Does it make sense to calculate the average (mean) of the numbers 1, 1438, 66, and 413?
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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