Answer to Question #86824 in Statistics and Probability for Anand

Question

Which of the following statements are true and which are false? Justify.

a) Number of samples chosen by SRSWOR and SRSWR are same if population size is 6 and sample size is 2.

b) The moving average method used in forecasting uses weighted averages.

Answer 1

a) False.

Number of samples for SRSWOR: 6!/(2!4!)=15.

Number of samples for SRSWR: 6^2=36.

b) False.

Simple Moving Average does no use weighted averages.