The Pizza Shop wanted to determine what proportion of its customers ordered an only cheese pizza. out of 90 customers surveyed,15 ordered an only cheese pizza. What is the 99% confidence interval of...

The Pizza Shop wanted to determine what proportion of its customers ordered an only cheese pizza. out of 90 customers surveyed,15 ordered an only cheese pizza. What is the 99% confidence interval of the true proportion of customers who order only cheese pizza?