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3 votes
1 answer
2k views

Cramer-Rao Casella Berger 7.38 for exponential family

The question states ''let $X_{1}, \dots, X_{n}$ be random sample from $f(x \mid \theta) = \theta\cdot x^{\theta-1}$ for $0 < x< 1 ; \theta > 0$. Is there a function of $\theta, g(\theta)$ ...
sophie-germain's user avatar
4 votes
1 answer
372 views

Exponential bound for tail of standard normal distributed random variable

Let $X\sim N(0,1)$ and $a\geq 0$. I have to show that $$\mathbb{P}(X\geq a)\leq\frac{\exp(\frac{-a^2}{2})}{1+a}$$ I have no problem showing that $\mathbb{P}(X\geq a)\leq \frac{\exp(\frac{-a^2}{2})}{a\...
stats19's user avatar
  • 103
1 vote
0 answers
52 views

Does logistic regression not fulfill an inequality required for Wilks' Theorem or am I missing something?

The required inequality: Wilks' Theorem is given in the source below as Theorem 12.4.2, p. 515. Before stating the inequality, some definitions are needed: Let $Z_1, \dots, Z_n$ be i.i.d. according to ...
MathStudent's user avatar