Mathematics, 15.11.2019 23:31 TabbyKun00
Many people think that a national lobby's successful fight against gun control legislation is reflecting the will of a minority of americans. a random sample of 4000 citizens yielded 2250 who are in favor of gun control legislation. estimate the true proportion of all americans who are in favor of gun control legislation using a 95% confidence interval
Answers: 3
, and a confidence interval 
, we have the following confidence interval of proportions.
.
and 
, z is the value of Z that has a pvalue of 
, so 
.
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