Discuss the below:
Purchase Amounts for all Customers Shopping at a Local Supermarket on a Given Friday
Q. Data of the amount that customers spend in a supermarket on a specific Friday. Assume this data represents the population. (20 points)
a. What sample size would be required to be 95% sure that the estimate is within + $10?
b. How would the sample size value change for a one sided interval (+$10)
c. Use the data from the first 30 customer to create a sample n = 30. What is the 95% confidence interval for this sample data?
d. What is a generic 95% confidence interval for any sample n=30?
Attachment:- table.rar