Sale of Air Conditioners
The average number of air conditioners sold in 2015 was 3600 per day in a city, and that was larger than the average for any other appliance.
Suppose the standard deviation is 1404 and the distribution is right-skewed. Suppose we take a random sample of 81 days in the year.
a. What value should we expect for the sample mean? Why?
b. What is the standard error for the sample mean?