Could you please write out the steps in detail?

According to international standards, a tennis ball should have an internal pressure of 14 psi. Wilson claims that the pressure in tennis balls they make follow a normal distribution With a population mean of 14 and a population standard deviation of 2. A quality control expert has taken a sample of 9 balls to test the variability in the pressure. Let X1, X2, . . . ,Xg be the balls and let S2 be the same vanance. (a) What is the distribution of $. Give the name as well as the parameters of the distribution. (3 pts) (b) Find P(S2 > 0.8232) (3 pts)