Consider the autocovariances below: Autocovariances of series 'x1', by lag 01234 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 58.9 58.3 57.8 57.2 56.7 56.0 55.4 54.8 54.1 53.5 52.9 52.2 51.6 51.0 50.3 49.7 49.1 48.5 47.9 47.3 46.7 46.2 45.6 45.0 44.5 25 26 27 28 29 30 43.9 43.3 42.7 42.1 41.5 40.9 Which one of the following realizations corresponds with the covariances above? (4pts) A B C 60 Time www. 40 60 60 100 Time Relat What is the sample variance of the realization above?) (4pts) 30 -20 40 60 60 100 Time Relat What is Show the simple "calculation by hand." (4pts) What is the margin of error (half width) of the 95% probability interval for from the following realization and model: Model: (6 pts) Realization {1,5,4,6,8,10,9,11} = 1.7 Show all "calculations by hand"... except for the psi weights... you can use tswge to find those.