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OpenStudy (anonymous):
find confidence interval for n=110 x=55 88% confident
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OpenStudy (anonymous):
well the sample size is greater than 30..therefore the population is normally distributed
OpenStudy (anonymous):
u can then use the formula for finding the confidence interval
OpenStudy (anonymous):
to use the formula u need to know the significance level.do u know the significance level?
OpenStudy (anonymous):
just the confidence level
OpenStudy (anonymous):
would i need to find the margin of error?
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OpenStudy (anonymous):
yes .well i call it the maximum error
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