How much do fans love Justin Timberlake? (Part 1)
Class code:
{none}
Class data will automatically update roughly every 5  10 seconds.
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. Which sampling method will give him the best estimate?
Method #1: Simple Random Sample
Select a simple random sample of 10 fans.
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:
?
If we did a census...
Average enjoyment for the population:
?
Teacher Panel
Admin code:
{none}
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.)
Quick Add
To the
SRS
Stratified by row
Stratified by column
plot, quickly add
samples (max 2000).
Adjust color, rounding, and percent/proportion preferences

Back to menu