The width of the beach in Pacific Beach depends on the tides. Your friend is curious to know if the beach's average width changes from morning to night. She picks 50 random days and she measures the beach's width both at 7 am and 7 pm. She then performs an hypothesis test with or = 0.02 and she claims that there is a statistically significant difference in the beach's average width between morning and night. She writes down for you the summarized data she collected but she forgets to give you all the information. Morning Night Morning - Night Beach's average width 10ft 13ft -3ft sd Ift 1.5ft a) (5 points) What are all the different values we could assign to ? on the basis of her claim? Here don't just guess and check but arrive at the solution with a mathematical argument