Engineers must consider the breadths of male heads when designing helmets. The company researchers have determined that the population of potential clientele have head breadths that are normally distributed with a mean of 6-in and a standard deviation of 1-in. Due to financial constraints, the helmets will be designed to fit all men except those with head breadths that are in the smallest 3.7% or largest 3.7%.
What is the minimum head breadth that will fit the clientele?
What is the maximum head breadth that will fit the clientele?
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