Engineers must consider the breadths of human 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 6.1-in and a standard deviation of 0.9-in. Using the Empirical Rule, in what range would you expect to find the middle 95% of most head breadths? Between and If you were to draw samples of size 46 from this population, in what range would you expect to find the middle 95% of most averages for the breadths of human heads in the sample? Between and