Golf cart attendants at a local country club often receive tips from golfers they assist with golf clubs. To help recruit new? employees, the country club would like to determine the average tips per day an attendant earns. A sample of 10 attendants averaged ?$42.44 per day in tips. Assume the population standard deviation for daily tips is ?$9.13. Complete parts a and b below.
a. Construct a 95?% confidence interval to estimate the average daily tips for an attendant.
The average daily tips for an attendant is between a lower limit of ?$______and an upper limit of ?$______.