A random sample of 22 large Papa John's pepperoni pizzas had an average of 41.1 slices of pepperoni with a standard deviation of 7.69 slices. A random sample of 8 large Pizza Hut pepperoni pizzas had an average of 27.1 slices of pepperoni with a standard deviation of 6.40 slices. Find a 99% confidence interval for the difference between these two pizza chains in average number of slices of pepperoni on a large pepperoni pizza, and explain what the interval means. (17 pts) a the