Question

Suppose that the lifetimes (in months) of bulbs manufactured by a company have an $\text{Exp}(\lambda)$ distribution, where $\lambda > 0$. A random sample of size 10 taken from the bulbs manufactured by the company yields the sample mean lifetime $\bar{x} = 3.52$ months. Then the uniformly minimum variance unbiased estimate of $\frac{1}{\lambda}$ based on this sample is equal to __________ months (round off to 2 decimal places).

Answer 1

The correct Answer is : 3.50 -3.55(Approx.)