Let X1,..., Xn be iid n(, a2), where a is a known constant and > 0.
Question:
a. Show that the parameter space does not contain a two-dimensional open set.
b. Show that the statistic T = (, S2) is a sufficient statistic for θ, but the family of distributions is not complete.
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a The parameter space consists only of the points on the graph of the function a 2 T...View the full answer
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