Sample size, by using of …. At 95 % confidence level, the error does not exceed 5 % of the size the sample used is representative of the population, total of group 300 sets that can be trusted.
Sample size, by using of …. At 95 % confidence level, the error does not exceed 5 % of the size the sample used is representative of the population, total of group 300 sets that can be trusted.