In 2008 and 2009, Systemax bought two failing electronics stores, Circuit City and CompUSA. They have kept both the names active and customers can purchase products from either website. If they take a random sample of a mixture of recent purchases from the two web-sites, the distribution of the amounts purchased will be bimodal.
a) As their sample size increases, what’s the expected shape of the distribution of amounts purchased in the sample?
b) As the sample size increases, what’s the expected shape of the sampling model for the mean amount purchased of the sample?