How much do fans love Justin Timberlake? (Part 1)
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Let's do the activity!
Justin Timberlakeâ€™s concert promoter wants to find out how much fans in the V.I.P. section enjoy the concert. He will estimate the average enjoyment level (1 to 100) for all 50 fans by selecting a sample of 10 fans.
Method #1: Simple Random Sample
Assign each fan a number. Randomly select 10 of the numbers.
Interview fans assigned the 10 selected numbers.
Average enjoyment for the sample:
?
Method #2: Stratify by Row
Randomly select two fans from each row.
Average enjoyment for the sample:
?
Method #3: Stratify by Column
Randomly select one fan from each column.
Average enjoyment for the sample:
?
Let's see how we did!
Average enjoyment for the population:
?
Teacher Panel
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Edit which plot:
SRS
Stratified by row
Stratified by column
Collect the selected sample type this many times silently (max 2000) and plot the results:
Add up to 2000 values separated by spaces or commas:
Delete observation:
(Mouse over data to see exact values.)
Adjust color, rounding, and percent/proportion preferences

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