Question: A company's manufacturing process has reliably been shown to produce ceiling fans that have X defects per ceiling fan, where X ~ Normal(μ = 10, _σ2 = 16). A new, up and coming director implements an "improved" process. A sample of size n=25 ceiling fans is collected, and we observe that the average number of defects per fan is 8.60. On the basis of this sample, answer the following questions (in order):