Activity 2: Simple Random & Stratified Random Sampling



MAT 100, Sampling Activity Name(s)_________________________Simple Random and Stratified Random Sampling Date ___________________________A Simple Random SampleThe college believes that 55% of the student body resides on campus. Use a random number generator to randomly select 10 students. Label the sampling frame using two digit numbers.Pick a simple random sample of 10 students.Describe the procedure:STEP 1:STEP 2:List the 10 students. Indicate whether the student resides on campus or commutes to campus.Student NumberResides or CommutesStudent NumberResides or CommutesWhat percentage of your SRS are residential students?Does this support the college’s belief? Explain.Stratified Simple Random SamplePick a stratified sample, by type of student (residential or commuter). Select 10 students from each stratum.Describe the procedure:STEP 1:STEP 2:List the 20 studentsStudent NumberResides or CommutesStudent NumberResides or CommutesSampling FrameThe following sampling frame represents the student body at a small liberal arts school in central Ohio. The white shapes represent resident students and the shaded shapes represent students who commute to campus.857258763000Sampling FrameThe following sampling frame represents the student body at a small liberal arts school in central Ohio. The white shapes represent resident students and the shaded shapes represent students who commute to campus.3524258763000 ................
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