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

QuickVote. TalkBack Live, a production of CNN, conducted on-line surveys on various issues. One survey, called a QuickVote, of 680 people asked “Would you vote for a third-party candidate?” Of the 680 people surveyed, 608 (89.4%) responded “yes” and 72 (10.6%) responded “no.” Beneath the vote tally, the following statement regarding the sampling procedure was found: This QuickVote is not scientific and reflects the opinions of only those Internet users who have chosen to participate. The results cannot be assumed to represent the opinions of Internet users in general, nor the public as a whole. The QuickVote sponsor is not responsible for content, functionality or the opinions expressed therein. Discuss the preceding statement in light of what you have learned

What is another kind of sampling error you might see in a poll besides random sampling error?

Telephone surveys may use a telephone directory to identify individuals for study. Speculate on the type of household that would be uncovered by using this sampling frame

Sociologists argued that women on average earn less than men as women often choose to work less hours. They further suggest that the choice of hours worked may be driven by various factors such as age, childcare needs, occupation choice and flexibility. To investigate the relation between hours worked and income earned by Australian men and women, a researcher plans to survey a sample of individuals across the country. a)  What type of survey method the researcher could use and why? b)  What sampling method could the researcher use to select his/her sample and why?

Sociologists argued that women on average earn less than men as women often choose to work less hours. They further suggest that the choice of hours worked may be driven by various factors such as age, childcare needs, occupation choice and flexibility. To investigate the relation between hours worked and income earned by Australian men and women, a researcher plans to survey a sample of individuals across the country. Briefly explain a) What type of survey method the researcher could use and why? b) What sampling method could the researcher use to select his/her sample and why? c) What are the two main variables the researcher should consider collecting data for the purpose of the above analysis and why? Identify the data type(s) for the variables. d) What kind of issues the researcher may face in this data collection?   Suppose a researcher has collected data from a sample of 65 individuals using the sampling method you have proposed in (b). For each individual, the hours worked per…

A market reseacher selects 500 drivers under 30 years of age and 500 drivers over 30 years of age. Which of these sampling is used?

You are interested in the percentage of people in your city who  favor tax cuts. You interview every twentieth person as they leave the church in your neighborhood. Determine what type of bias the study involves.

Identify which of these types of sampling is used: random, stratified, systematic, cluster, convenience. Professor Cuellar uses a computer to generate 20 random student ID numbers, then interviews the students corresponding to those numbers.