Discussion:
Q: Below attachment contains data for 400 customers. This company, ElecMart sells electronic appliances for mail-in orders. Consider this data as a random sample from all of ElecMart mail-in orders. Find the following two sided confidence intervals:
a. Find the 95% Confidence Interval for the portion of all customers whose order is more than $100
b. Find the 95% Confidence Interval for the portion of all customers whose order contains at least 5 items and cost at least $100
Attachment:- Data.rar