Suppose X1, X2, ..., Xn are independent and identically distributed random variables from N(µ, o3) (each with a density f (x; µ) = (z-µ)² 20ó ). Suppose that oo is known. e V2T00 a) Argue that the joint density of X1, X2,..., Xn has monotone likelihood ratio in E X;. i=D1 b) Derive the UMP unbiased size a = 0.05 test p* of Ho : u = µo versus H1 :µ # po. c) Show that the power function of this test is (Or1 – 1)u^ + +-1.96 Eµ4* = 1– D 1.96 00 (Orl – r1)u^ σο with denoting the cdf of the standard normal distribution. d) Set n = 10, ơ0 = 2, µo = 3. Evaluate numerically the power function for µ = 1,2, 3, 4, 5 and draw its graph on the real axis using R. e) Calculate the density fxa (x) of the third order statistic X(3) under Ho. Hence find numerically P(X(3) < 2). (You could use the integrate function in R ).

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter10: Sequences, Series, And Probability
Section10.8: Probability
Problem 31E
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1. Suppose X1, X2, ..., Xn are independent and identically distributed random variables from
1
N(µ, o3) (each with a density f(x; µ) =
206 ). Suppose that oo is known.
V2n00
a) Argue that the joint density of X1, X2, .
X, has monotone likelihood ratio in E X;.
b) Derive the UMP unbiased size a = 0.05 test y* of Ho : u = µo versus H1 : µ # µo.
c) Show that the power function of this test is
Vn(µ – H0)
Vn(u – Ho)
Euf* = 1 – ¢
1.96
-1.96
σο
σο
with denoting the cdf of the standard normal distribution.
d) Set n = 10, o0 = 2, µo = 3. Evaluate numerically the power function for u = 1, 2, 3, 4, 5
and draw its graph on the real axis using R.
e) Calculate the density fxe (x) of the third order statistic X(3) under Họ. Hence find
numerically P(X (3) < 2). (You could use the integrate function in R ).
Transcribed Image Text:1. Suppose X1, X2, ..., Xn are independent and identically distributed random variables from 1 N(µ, o3) (each with a density f(x; µ) = 206 ). Suppose that oo is known. V2n00 a) Argue that the joint density of X1, X2, . X, has monotone likelihood ratio in E X;. b) Derive the UMP unbiased size a = 0.05 test y* of Ho : u = µo versus H1 : µ # µo. c) Show that the power function of this test is Vn(µ – H0) Vn(u – Ho) Euf* = 1 – ¢ 1.96 -1.96 σο σο with denoting the cdf of the standard normal distribution. d) Set n = 10, o0 = 2, µo = 3. Evaluate numerically the power function for u = 1, 2, 3, 4, 5 and draw its graph on the real axis using R. e) Calculate the density fxe (x) of the third order statistic X(3) under Họ. Hence find numerically P(X (3) < 2). (You could use the integrate function in R ).
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