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Lunch break: In a recent survey of 655 working Americans oges 2534, the average weekly arnourit spent on lunch was $42.30 with standard deviation S2.84. The weekly amounts are approximately bell-shaped. Part: 0/3 Part 1 of ] (a) Estimat the percentage of amounts that are between $39.46 and $45:14. of the amounts fall between $39,46 and $45.14