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hi can you help me with this question? The monthly incomes for 12 randomly selected people, each with a bachelor's degree in economics, are 4450_73

hi can you help me with this question?
The monthly incomes for 12 randomly selected people, each with a bachelor's degree in economics, are 4450_73 4596.31 4366.68 shown on the right. Complete parts (a) through (c) below. 4455.64 4151.97 3727.88 Assume the population is normally distributed. 4283-77 4527-85 4407.45 3946.11 4023.54 4221.21 (a) Find the sample mean. i = 4263.3' (Round to one decimal place as needed.) (b) Find the sample standard deviation. s = Cl (Round to one decimal place as needed.)

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