Bayesian Sample Size Determination with Lowest Cost by Using Numerical Methods

ýIn this articleý, ýthe method of determining the optimal sample size is based on Linex asymmetric loss function and has been expressed through Bayesian method for normalý, ýPoisson and exponential distributionsý. ýThe desirable sample size has been calculated through numerical methodý. ýIn numerical methodý, ýthe average posterior risk is calculated and then it is added to the Lindley linear cost function to achieve the average of the total costý. ýThený, ýthe diagram of sample size is drawn in comparison to the average of total cost and eventuallyý, ýthe optimal sample size that minimizes the cost has been achieved.