$$\hat{\lambda} = \bar{x}$$
$$\hat{\sigma}^2 = \frac{1}{n} \sum_{i=1}^{n} (x_i-\bar{x})^2$$ theory of point estimation solution manual
$$\frac{\partial \log L}{\partial \mu} = \sum_{i=1}^{n} \frac{x_i-\mu}{\sigma^2} = 0$$ The theory of point estimation provides methods for
Solving these equations, we get:
The theory of point estimation is based on the concept of sampling theory. When a sample is drawn from a population, it is rarely identical to the population parameter. Therefore, the sample statistic is used as an estimate of the population parameter. The theory of point estimation provides methods for constructing estimators that are optimal in some sense. The Bayesian approach, on the other hand, assumes
There are two main approaches to point estimation: the classical approach and the Bayesian approach. The classical approach, also known as the frequentist approach, assumes that the population parameter is a fixed value and that the sample is randomly drawn from the population. The Bayesian approach, on the other hand, assumes that the population parameter is a random variable and uses prior information to update the estimate.