Julie is saving money from each paycheck to buy a new tablet. She is saving $20 each week. Her total savings can be modeled by the equation S(W)=20w, where S is the total savings and wis the number of weeks that Julie
has been saving
7/1
What is S(11)?

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