..class of 30 seventh graders wanted to estimate the proportion of middle school students who played a musical instrument. Each seventh grader took a random sample of 25 middle school students and asked each student whether or not he or she played a musical instrument. The following are the sample proportions the seventh graders found in 30 samples.
0.80
0.64
0.72
0.60
0.60
0.72
0.76
0.68
0.72
0.68
0.72
0.68
0.68
0.76
0.84
0.60
0.80
0.72
0.76
0.80
0.76
0.60
0.80
0.84
0.68
0.68
0.72
0.68
0.64
0.72
he first proportion shown is 0.8. What does 0.8 mean in the context of this study?
A of the 30 students sampled, 8 of them played a musical instrument
of the 25 students sampled, 8 of them played a musical instrument,
of the 25tudents sampled, 20 of them played a musical instrument
Of the 30 students sampled, 24 of them played a musical instrument.
The average student plays an instrument 80% of the time.
INTI