What is 95% confidence interval for average checkout time


The manager of a grocery store has taken a random sample of 100 customers. The average length of time it took these 100 customers to check out was 3.0 minutes. It is known that the standard deviation of the checkout time is one minute. what is the 95% confidence interval for the average checkout time of all customers?

Request for Solution File

Ask an Expert for Answer!!
Basic Statistics: What is 95% confidence interval for average checkout time
Reference No:- TGS0106678

Expected delivery within 24 Hours