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10. A marketing consultant was interested in estimating the mean weekly consumption of soft drinksamong teenagers. A random sample of teenagers were asked how many ounces of soft drink they'"consume daily. The sum of the observations and the sum of the squared observations are shown below.1and 2,150!!3œ"3œ"'"'"33#B œ$'&Bœ $Estimate with 99% confidence the mean daily consumption of soft drinks by teenagers. Recall:=œB "8 "8B##33#ÎÑÐÓÐÓÐÓÐÓÏÒ"Œ!11. Suppose that 9 observations are drawn from a normal population with = 2. The observations are:5