We are interested in customer satisfaction ratings for a particular video game. In a
group of 65 customers, we �nd a sample mean of 42.95 and the standard deviation is 2.64.
Find a 95% Con�dence interval for u.
group of 65 customers, we �nd a sample mean of 42.95 and the standard deviation is 2.64.
Find a 95% Con�dence interval for u.