1. In a large sample study according to a report by the U.S.surgeon general, ele
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1. In a large sample study according to a report by the U.S.surgeon general, electrical engineers have the lowest smoking rateamong all workers surveyed. Only 16% of the male electricalengineers in the sample smoke cigarettes regularly. How many maleelectrical engineers must be sampled to estimate the proportion ofall male electrical engineers who smoke regularly to within 3% ofits true value with 95% confidence?2.In a recent study, 69 of 120 meteorites were observed to enterthe earth's atmosphere with a velocity of less than 26 miles persecond.
A) What can you say with 95% confidence about the maximumerror?
B) What confidence can we assert that the maximum error of thisstudy is at most 0.055?
C) How large of a sample size is needed if the maximum error ofestimate for this study is at most 2.5%
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