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Q65Section ST (Statistics (Q11–Q65))65 of 65

Size and power of a one-sided UMP test

Let XX be a single observation from a distribution having probability density function fθ(x)={2x/θ2,0<x<θ 0,otherwisef_\theta(x) = \begin{cases} 2x/\theta^2, & 0 < x < \theta \ 0, & \text{otherwise} \end{cases}, where θ∈(0,∞)\theta \in (0, \infty). For testing H0:θ≤1H_0: \theta \le 1 against H1:θ>1H_1: \theta > 1, at level of significance 0.05, let β1\beta_1 be the size of the uniformly most powerful test and β2\beta_2 be the power of the uniformly most powerful test at θ=2\theta = 2. Then 10β1+40β210\beta_1 + 40\beta_2 equals ________ (answer in integer).

Numerical answer: type the number (no options).

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