A potential investor conducted a 144-day survey in each of the North Mall and South Mall theaters in ...

A potential investor conducted a 144-day survey in each of the North Mall and South Mall theaters in order to determine the difference between the average daily attendance at these two theaters. The North Mall theater averaged 630 patrons per day; while the South Mall theater averaged 598 patrons per day. From past information, it is known that the variance for North Mall is 1000; while the variance for the South Mall is 1304 . Develop a 95 confidence interval for the difference between the average daily attendance at the two theaters.