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 5.8-in and a standard deviation of 1.2-in.
In what range would you expect to find the middle 98% of most head breadths?
Between and
If you were to draw samples of size 33 from this population, in what range would you expect to find
the middle 98% of most averages for the breadths of male heads in the sample?
Between and
Enter your answers as numbers. Your answers should be accurate to 2 decimal places.
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