The Dean of your college is interested in studying the level of understanding th

Question

The Dean of your college is interested in studying the level of understanding that the business school undergraduate (UG) students have of Data Analytics tools. He asks me to devise a simple sampling plan for the study. I devise a short test and ask my research assistant to randomly select 100 students to take the test. For their participation, students will be given a $1000 gift card and they are promised anonymity regarding their score. I feel extremely confident that all selected students will participate given these incentives. My research assistant, Lopez X. Lopez, is extremely bright, but has demonstrated a lack of attention to detail and process; therefore, I fear that he may introduce non-sampling error to the study. I ask Lopez how he selected the 100 subjects for the study. Which of the following describes the best results from a reduction of non-sampling error perspective? (Choose 1)

a.) Lopez asked his friends to identity UG business students they knew; he selected 100 from that group and issued the gift cards. In return, they took the test.

Explanation / Answer

a.) Lopez asked his friends to identity UG business students they knew; he selected 100 from that group and issued the gift cards. In return, they took the test. - here error may occur as it depends on the choice of Lopez's friend.

Here error may occur

Non sampling error will be least in case of

There are several causes if non sampling error like lack of proper specification of the domain of study and scope of investigation, incomplete coverage of the population or sample,faulty definition, defective methods of data collection and tabulation errors.

b.) Lopez called the Business School registrar and asked for the names of 100 UG business students. He called those students, made the gift-card offer, and they took the test.

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