Question

A sample of 80 results in 30 successes.
a. Calculate the point estimate for the population proportion of successes.
b. Construct 90% and 99% confidence intervals for the population proportion.
c. Can we conclude at 90% confidence that the population proportion differs from 0.5?
d. Can we conclude at 99% confidence that the population proportion differs from 0.5?



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  • CreatedJanuary 28, 2015
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