EX : 3.1 Suppose that X, the reaction time to a stimulus, has a uniform distribution on the interval from 0 to an unknown upper limit 0 (so the density function of X is rectangle in shape with height 1/0 for 0 < x < 0). An investigator wants to estimate 0 on the basis of a random sample X1, ..., X, of reaction times. A very natural estimate is the sample maximum ôs = max(X1,..., Xn). If n = 5, and rı = 4.2, r2 = 1.7, 13 = 2.4, x4 = 3.9, 15 = 1.3, the point estimate of 0 is Ô, = max(4.2, 1.7, 2.4, 3.9, 1.3) = 4.2. Is the estimator ô, an unbiased estimator of 0? Show that; n+1, is an unbiased estimator of 0 using the knowledge of order statistics.

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EX : 3.1
Suppose that X, the reaction time to a stimulus, has a uniform distribution
on the interval from 0 to an unknown upper limit 0 (so the density function of X is rectangle
in shape with height 1/0 for 0 <r < 0). An investigator wants to estimate 0 on the basis
of a random sample X1,.., Xn of reaction times. A very natural estimate is the sample
maximum ôs = max(X1,..., Xn). If n = 5, and #1 = 4.2, r2 = 1.7, r3 = 2.4, x4 = 3.9,
25 = 1.3, the point estimate of 0 is Ô, = max(4.2, 1.7, 2.4, 3.9, 1.3) = 4.2. Is the estimator Ôb
%3D
an unbiased estimator of 0?
Show that;
n+1
is an unbiased estimator of 0 using the knowledge of order statistics.
Transcribed Image Text:EX : 3.1 Suppose that X, the reaction time to a stimulus, has a uniform distribution on the interval from 0 to an unknown upper limit 0 (so the density function of X is rectangle in shape with height 1/0 for 0 <r < 0). An investigator wants to estimate 0 on the basis of a random sample X1,.., Xn of reaction times. A very natural estimate is the sample maximum ôs = max(X1,..., Xn). If n = 5, and #1 = 4.2, r2 = 1.7, r3 = 2.4, x4 = 3.9, 25 = 1.3, the point estimate of 0 is Ô, = max(4.2, 1.7, 2.4, 3.9, 1.3) = 4.2. Is the estimator Ôb %3D an unbiased estimator of 0? Show that; n+1 is an unbiased estimator of 0 using the knowledge of order statistics.
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