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Math · Statistics And Probability
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Find the minimum sample size required to estimate a population proportion or percentage

A) find the same size needed to estimate the percentage of robberies in texas that result in arrests. Use a 0.04 margin of error, use a confidence level of 80% and assume that ^p and ^q are unknown.

B) Find the sample size needed to estimate the percentage of adults who have consulted fortune tellers. Use a 0.03 margin of error use a confidence level of 98% and use results froma prior pew research center poll suggesting that 15% of adults have consulted fortune tellers.


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