SOLUTION: a poll of 1100 randomly selected students in grades 6 through 8 was conducted and found that 47% enjoy playing sports. would confidence in the results increase if the sample size w
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Question 261174: a poll of 1100 randomly selected students in grades 6 through 8 was conducted and found that 47% enjoy playing sports. would confidence in the results increase if the sample size were 3600 instead of 1100? why or why not? Answer by stanbon(75887) (Show Source):
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a poll of 1100 randomly selected students in grades 6 through 8 was conducted and found that 47% enjoy playing sports. would confidence in the results increase if the sample size were 3600 instead of 1100? why or why not?
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For a given level of confidence standard error is zo*std/(sqrt(n))
The confidence level determines the size of zo.
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Since level of confidence (zo) is in the numerator and "n" is in
the denominator you see that confidence and sample size are directly
related (as one rises the other rises and vice versa).
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Cheers,
Stan H.
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