Suppose a researcher from the School of Education at SU wanted to know whether or not students at SU preferred taking classes online or in person this coming Fall 2020 semester. The researcher plans to collect a sample by preparing an optional online survey sent out via e-mail in which students are asked to circle preferences ”online,” ”in person,” or ”not sure.” There is also comment box in the survey where students can express their opinions and concerns. This method of sampling is an example of which of the following: (i) convenience sampling (ii) voluntary response sampling (iii) stratified random sample (iv) multi-stage sampling

Q: Suppose I was interested in a snapshot of the number of persons leaving a grocery store today to…

A: 1) Suppose I was interested in a snapshot of the number of persons leaving a grocery store today to…

Q: As part of a recreation planning survey at a park, questions are asked of all persons visiting the…

A: In census survey, all units in the population are enumerated. That is, enumeration of all units in…

Q: A nursing home director keeps a list of every resident they are responsible for. Using this list,…

A: In the systematic sample we select sample after the fixed interval.

Q: kely purchase Mungo’s new chip flavor?” Mungo is interested in the proportion of survey respondents…

A: Quality Market research survey on Potential popularity of new flavor Mungo’s new chip flavor The…

Q: Define bias?

A: In this case, we need to define bias.

Q: entering your work cafeteria and are approached by an individual to participate in their study by…

A: Given that  You are entering your work cafeteria and are approached by an individual to participate…

Q: What sampling techniques should be used while establishing if someone is happy or not?

A: Here we want to establish sampling technique if someone happy or not.

Q: A graduate student wants to know which campus dining option undergraduate students prefer across the…

A: Here, the graduate student randomly selected 10 students from each residence hall across the…

Q: ociologists argued that women on average earn less than men as women often choose to work less…

A: d)The researcher will face these issues during data collection 1: Finding the appropriate way to…

Q: BestBuy was happy with how well the TV giveaway promotion went. They decide to run a similar…

A: In given survey, customers that come into their stores on Saturday morning and ask them, "What type…

Q: A newspaper conducts an online poll. They are aware that since it is an online poll and the…

A: Their thinking is incorrect. The margin of error does not account for the bias.

Q: The Denver Area Big Organization for Medicine and Business (DA-BOMB) is a not-for-profit consultant…

A: Solution: Stratified random sampling:  Stratified random sampling is a type of prbability sampling…

Q: A researcher wanted to know what factors determine a state public employee’s annual salary;…

A: Here the data is very large , we will paste it into excel and will find out the sample size and…

Q: 6 percent nonconforming 12 percent of the time. use acceptance numbers of 1,2 and 4. from a…

A: In the pursuit of devising effective single sampling plans to identify and reject lots containing 6…

Q: What about part two which refers to the sampling model's shape, center, and spread

A: Given: Sample size = 50 Sample standard deviation = 9 Sample mean = 10.70

Q: What decisions can be made on the basis of The Harris Poll survey that measures the reputations of…

A:

Q: In the Star and Tribune newspaper, there is an article entitled “1 in 8 school buses fail tests."…

A: Given information: Sample of 200 buses and find that 20 buses fail the safety inspection. Let us…

Q: Suppose I want to ask people their opinions on the recent Covid pandemic. I decide to put a survey…

A: Data collection method: The investigator is interested to analyse the opinions of people on the…

Q: pple recently released a new version of its iPhone 13 Max and wants to solicit feedback on the…

A: Voluntary Response Sample: This represents the sample who choose to volunteer for the response. Here…

Q: The California State University (CSU) system consists  of 23 campuses, from San Diego State in the…

A: Given Information: From San Diego State in the south to Humboldt State close to the Oregon border,…

Q: A test of the effectiveness of a new curriculum could begin by dividing an area by school district,…

A: Here we have given the sampling scheme, We have to identify which of the random sampling scheme is…

Q: Which of the following are sources of sampling error and which are sources of nonsampling error?

A: Sampling errors are the errors that are arises due to fact that samples are taken to infer the…

Q: 4a. Suppose that 35% of senior citizens have a social media account. If we survey 150 senior…

A: The question is about sampling distribution Given : Prop. of senior citizens have a social media…

Q: A study is conducted to assess the attitude of physicians towards drug screening in the workplace.…

A: In this case, a study is performed to define the attitude of physicians towards drug screening in…

Q: New York State has approximately 250,000 employees across over 70 state agencies, commissions and…

A: Given information: New York State has approximately 250,000 employees across over 70 state agencies,…

Types of Bias

Statistics is the study of data collection, organization, analysis, interpretation, and presentation. Statistical bias is a characteristic of a statistical technique or its findings in which the expected value deviates from the actual root quantitative parameter being estimated. According to the actual definition of bias, it refers to the tendency of a statistic to overestimate or underestimate a parameter.