Julie sells jewelry at house parties as a way to make extra money. Her commission is 11% of the sales she makes. She had 3 parties this month. The sales for the 3 parties were $810, $670, and $925. What was her commission for the month?

Twelve different video games showing substance use were observed and the duration times of game play (in seconds) are listed below. the design of the study justifies the assumption that the sample can be treated as a simple random sample. use the data to construct a 99% confidence interval estimate of μ, the mean duration of game play. 4028 4316 4816 4650 4036 5010 4833 4331 4307