Asked by tms
In a population of 10,000 adults, 20% are smokers. A simple random sample of 600 of the adults is drawn.
a)The SE of the number of smokers in the sample is closest to
9.45
9.5
9.55
9.6
9.65
9.7
9.75
9.8
9.85
9.9
b)The chance that there are fewer than 115 smokers in the sample is closest to (pick the best of the options below, even if you can calculate the probability more accurately)
10%
20%
30%
40%
50%
60%
70%
80%
90%
a)The SE of the number of smokers in the sample is closest to
9.45
9.5
9.55
9.6
9.65
9.7
9.75
9.8
9.85
9.9
b)The chance that there are fewer than 115 smokers in the sample is closest to (pick the best of the options below, even if you can calculate the probability more accurately)
10%
20%
30%
40%
50%
60%
70%
80%
90%
Answers
Answered by
john
SE=9.5
chance=30%
chance=30%
Answered by
Anonymous
and the Expected smoker #?
Answered by
john
120
Answered by
Din123
thanks
Answered by
George Lewis
Can you give the steps that led to these answers?
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