1 A Coffee Shop Buys Roasted Coffee From A Supplier In Order To Assess The Quality Of The Supplied Coffee The Manager 1 (42.93 KiB) Viewed 66 times
1. A coffee shop buys roasted coffee from a supplier. In order to assess the quality of the supplied coffee, the manager of the shop conducts a tasting experiment where she selects a small portion of coffee beans from different batches and tastes the coffee from each portion. For each portion she gives a score in the scale 1, 2, ... , 10 with 10 corresponding to coffee of the best taste and uses the results to assess the quality of the coffee. Identify the population, parameter, and statistic.
iid 1 Li 3. In the lesson, we stated that if X1, ... , X, N(u, o2), then X = X=1 X;. You are given that, since X is a linear combination of normally distributed variables, it is normally distributed too. By calculating E(X) and Var(X), show that X ~ N(u, ).
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