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Some years ago a study by the U.S. Bureau of Justice Statistics concluded that 61% of jail inmates had not completed high school. Criminologist Horatio Caine
believes that now, in his state, the percentage is lower than 61%. He selects a random sample of 400 inmates for his study and found that 220 had not completed high
school. Test at a=0.01. Show all seven steps to receive full credit.