Let Y1, 12 Yn denote a random sample with density function given by { f(y|0) = 20² y³ 7 0

MATLAB: An Introduction with Applications
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Let Y₁, Y₂, .
Yn denote a random sample with density function given by
"
f(y|0) =
20²
y³
0,
0 <y<∞,
elsewhere.
a. Find an estimator for by using the method of moments.
b. Is this estimator a sufficient statistic for 0?
c. Show that Y(1) = min (Y₁, Y₂, ..., Yn) is sufficient for 0.
d. Find the MLE for 0.
e. Find a function of the MLE in part (d) that is a pivotal quantity.
f. Use the pivotal quantity from part (e) to find a 100(1-a)% confidence interval
for 0.
Transcribed Image Text:Let Y₁, Y₂, . Yn denote a random sample with density function given by " f(y|0) = 20² y³ 0, 0 <y<∞, elsewhere. a. Find an estimator for by using the method of moments. b. Is this estimator a sufficient statistic for 0? c. Show that Y(1) = min (Y₁, Y₂, ..., Yn) is sufficient for 0. d. Find the MLE for 0. e. Find a function of the MLE in part (d) that is a pivotal quantity. f. Use the pivotal quantity from part (e) to find a 100(1-a)% confidence interval for 0.
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