Answer to Question #257749 in Statistics and Probability for Manu

Question

The burning time of a rocket (measured in seconds) can be thought of as a random variable having uniform distribution on the interval (0,b). 10 rockets yielded the following burning times: 8.7,10.9,7,12,11,7,9.10. Then find an unbiased estimate of b. 

Select one: a.9 b.18 c.12 d.15 

Answer 1

Sample mean $= \frac{8+7+10+9+7+12+11+7+9+10}{10}=9$

Answer: a.9