I would like to ask how to solve the following question. Please provide all necessary steps. Thank you very much.

Hypothesis Testing Q3: The following are the weights, in decagrams, of 10 packages of grass seed distributed by a certain company: 46.4, 46.1, 45.8, 47.0, 46.1, 45.9, 45.8, 46.9, 45.2, 46.0. Assume that a normal distribution is used. a) Find a 90% C.I. and a 95% C.I. for the variance of the weight of a package of grass seed distributed by this company. b) Use the results in (a) to test the two-sided tests with i) Ho: dy = 0.5 at a = 0.1 it) Ho: dy = 0.5 at a = 0.08 iii) Ho:0? = 1 at a = 0.05 iv) Ho:02 = 1 at a = 0.08 v) Ho: Ox = 0.8 at a = 0.05 vi) Ho: Ox = 0.8 at a = 0.08 If we cannot draw any conclusion directly by using the results in (a), then please suggest a way and use it to draw a conclusion