Question: A large Internet provider conducted a survey of its customers. One question that it asked was how many e-mail messages the respondent had received the previous day. The mean number was 13.2.
a. What is the research question of interest for this survey?
b. What is the population parameter in this study? What is the appropriate statistical notation (symbol) for this parameter?
c. What is the value of the sample estimate (statistic) in this study? What is the appropriate statistical notation (symbol) for this estimate?