Directions: Answer all questions in the Blue Book. Show your work for partial cr
ID: 3051856 • Letter: D
Question
Directions: Answer all questions in the Blue Book. Show your work for partial credit. 1.The Administration of Memorial High School are considering changing the start time of cla 7:30 am to 8:30 am. suggested sses from They plan to consult the students on this issue. There are four possible ways to carry out the study. Name the sampling strategy used in each of these suggested ways. (5 pts each) (Possible choices - SRS, Stratified, Systematic, Cluster, Convenience) a. Each student has a three-digit identification number. Randomly choose the students in the study by using these numbers. b. Choose every twentieth student who arrives to school on a given morning. c. Randomly select an equal number of students from each year. d. Choose all students who are on sports teams.Explanation / Answer
a)SRS- Simple random sampling is used because, with simple random sampling, there would an equal chance (probability) that each of the students could be selected based on their three-digit identification number for inclusion in our sample.
b)Systematic sampling strategy is used. In a systematic sampling strategy, after we decide the sample size, we arrange the elements of the population in some order and select terms at regular intervals from the list.For example, selecting every twentieth student who arrives at school on a given morning
c)Stratified sampling strategy is used.
With stratified sampling we should:
Here first the school population is divided into year and then randomly an equal number of student is selected from each year.
d)Convenience sampling strategy is used. Because here all students who are on the sports team are selected Which are solely based on administration choices according to their convenience rather than any random selection.
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