The unknown population mean number of advertising or solicitation emails a retail customer received per day is 7.2. An advertising company wants to estimate the population number of solicitation e-mails a customer received per day.
Which action should the company avoid taking according to the central limit theorem?
a. Include a maximum of ten customers in each sample
b. Use large sample sizes
c. Calculate the mean of the sample averages
d. Perform many samples of customers