STAT 450

Problems: Assignment 7

1. Page 398. Q 1.

2. Page 398 Q 2.

3. Page 398. Q 6.

4. Suppose X is an exponential().
   1. Find the shortest exact 95% confidence interval based on .

   2. Find the exact confidence level of 95% confidence intervals based on the chi-squared approximation to the distribution of the likelihood ratio . Compare the results with that of part a) based on length and coverage probabilities. Which method is better?

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