Skip to content
Q19Section A (Section A)19 of 60

Consistency of shifted exponential estimators

Let X1,X2,…,XnX_1, X_2, \dots, X_n be a random sample from a population having the probability density function f(x;μ)={12e−x−2μ2,if x>2μ, 0,otherwise,f(x; \mu)=\begin{cases} \frac{1}{2} e^{-\frac{x-2\mu}{2}}, & \text{if }x > 2\mu, \ 0, & \text{otherwise,} \end{cases} where −∞<μ<∞-\infty < \mu < \infty. For estimating μ\mu, consider estimators T1=Xˉ−22andT2=nX(1)−22n,T_1 = \frac{\bar{X}-2}{2}\quad\text{and}\quad T_2 = \frac{n X_{(1)}-2}{2n}, where Xˉ=1n∑i=1nXi\bar{X}=\frac{1}{n}\sum_{i=1}^n X_i and X(1)=min⁡{X1,X2,…,Xn}X_{(1)}=\min\{X_1, X_2, \dots, X_n\}. Then, which one of the following statements is TRUE?

Options

Pick an option to check your answer.