Question 20 An employee at a store is going to display 9 scented candles in a row on a shelf. He will put one of the candles, Ocean Breeze, in the first spot. He will put another of the candles, Apple Pie, in the second spot. In how many ways can he arrange the candles?

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