Quiz: Quiz 1 Week 2 Time Remaining: 03:52 42 Submit Quiz Help This Question: 1 p
ID: 2947798 • Letter: Q
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Quiz: Quiz 1 Week 2 Time Remaining: 03:52 42 Submit Quiz Help This Question: 1 pt 5of 18 (3 complete) This Quiz: 18 pts possible Question Heip Identity the sampling techniques used, and discuss potential sources of bias (if any). Explain Assame the population of interest is the student body at a university Questioning students as they leave a university parking lot, a researdher asks 373 students about their drinking habits. What type of sampling is used? O A. Simple random sampling is used, because students are chosen at random B. Conve??ence sampling is used, because students are dosen due to convenionce of location O C. Stratified sampling is used, because students are divided into groups, and students are chosen at random from these groups. O D. Systematic sampling is used, because students are selected from a list with a fixed interval between students on the list O E. Cluster sampling is used, because students are divided into groups, groups are chosen at random, and every student in one of those groups is sampled What potential sources of bias are present, if any? Select all that apply. OA The samgle only consists of members of the population that are easy to get These members may not be reprecentative of the population B. University students may not be representative of all people in their age group C. Because of the personal nature of the question, students may not answer honestly D. There are no potential sources of bias Click to select your answers)Explanation / Answer
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(a) Convenience Sampling because students are chosen due to convenience of location.
(b) Biases: Because of the personal nature of the? question, students may not answer honestly. & The sample only consists of members of the population that are easy to get. These members may not be representative of the population
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(a) systematic sampling because every eighth person is selected(since persons are selected at fixed intervals).
Systematic sampling is a type of probabilitysampling method in which sample members from a larger population are selected according to a random starting point and a fixed, periodic interval.
(b) systematic sampling involves how the list used with the sampling interval is organized. If the population placed on the list is organized in a cyclical pattern that matches the sampling interval, the selected sample may be biased else no such biases.
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