Question: A survey of 120 families showed that at least 78 had a computer at home. Find the 99% confidence interval of the true proportion of families who own a home computer.
A ) 64.5% < p < 65.5% B ) 5.38% < p < 7.62% C ) 53.8% < p < 76.2% D ) 60.6% < p < 69.4%
Steps to derive
1 The problem is to find the true proportion of families who own a home computer
