We want to find out what the household size for U.S. states is with lower populations, basically less than 5 million people. We took a random sample of 11 states with lower populations which averaged a household size of 2.49 and a standard deviation of 0.1. The data showed no outliers or any problems. Using this information estimate the MEAN household size for U.S. states with lower populations with a 90% confidence.

1. what is the name of the appropriate estimation procedure? 2. what is the parameter of interest? and describe the parameter of interest using the context of the problem please.