Mr. morris has a class of 14 students. he can spend $24 on each student to buy math supplies for the year. he first buys all the students calculators, which costs a total of $95.20. after buying the calculators, how does he have left to spend on each student?

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