The survey has bias. (a) Determine the type of bias. (b) Suggest a remedy.Suppose you are conducting a survey regarding activity level of children in a school district. You obtain a cluster sample of 19 schools within a school district andsample all sophomore students in the randomly selected schools. The survey is administered by the teachers.(a) Which of these best desscribes the bias in the survey?Nonresponse biasUndercoverage biasSampling biasResponse bias(b) How can the bias be remedied?O A. The survey should be administered by an impartial party.B. The survey should include the teachers.C. The survey should include a greater number of schoolsD. The survey should be administered to a random sample, not a cluster sample.pe here to search..**23

For the given statement select correct choice

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

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Multiple Choice Question Identify the bias that is most present in the following scenario: Students are asked by their teacher whether they had ever cheated on a test and are required to respond. A. Response B. Nonresponse C. Selection
Online customer service is a key element to successful online retailing. According to a marketing survey, 30% of online customers take advantage of the online customer service. Assume the population proportion of those who use online customer service is 0.30. Random samples of 100 customers are selected. 95% of the sample proportions centered symmetrically about the sampling distribution mean will be between _________________ and _________________.
Multiple Choice Question Identify the type of sampling used in the following scenario: To conduct a study on depression among the elderly, a sample of 30 patients in one nearby nursing home was used. A. Simple Random B. Voluntary Response C. Stratified D. Convenience
The students in an Introductory Statistics class are asked to complete a survey about study habits. (a) does the study appear to use random sampling? yes or no (b) does the study appear to use random assignment? yes or no
Suppose you recruit the next 100 people who visit the DCC cafeteria to participate in a survey. One of the questions you ask is whether the student eats on campus (i.e., in the cafeteria) regularly, and you want to use the sample proportion to estimate the value of the (population) proportion of all DCC students who eat on campus regularly. Do you think this sampling method is likely to be biased? If so, in which direction? This sampling method is not likely to be biased and will produce a representative sample of DCC students. This sampling method is biased and is likely to yield an overestimate for the population proportion. This sampling method is biased and is likely to yield an underestimate for the population proportion.
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Scenario: An early childhood education student is undertaking an observational study of literacy development among kindergardeners in Rancho Cordova. The school she is placed at has 230 students in 12 classrooms Short Answer A. Describe a way she can take a stratified sample. B. Describe what the explanatory and response variables may be. C.A convenience sample is taken and introduces nonrandom sampling error. What is one way this can happen?
A marketer is examining the effectiveness of color scheme on the willingness to subscribe to a user's social media account. She creates three different profiles using three different color schemes: red, blue, and green. Twenty participants are asked to evaluate how much they like each of the profiles using a scale of 1 (do not like) to 5 (like a lot). What statistical procedure should you use to analyze these data? O independent groups t test O correlated groups t test O One Way Between Subjects ANOVA O One Way Repeated Measures ANOVA
Compare and contrast (a.) single-sample t tests, (b.) paired sample t tests, and (c.) independent sample ttests in terms of participants recruited, data collected from each participant, and information we need toconduct the analysis.
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