A simple random sample of ten college freshmen were asked how many hours of sleep they typically got per night. The results were 8.5 8 6.5 9 8.5 7.5 6 24 6.5 7.5 Send data to Excel Notice that one joker said that he sleeps 24 a day. Part: 0/3 Part 1 of 3 (a) The data contain an outlier that is clearly a mistake. Eliminate the outlier, then construct a 99.5% confidence interval for the mean amount of sleep from the remaining values. Round the answers to at least two decimal places. A 99.5% confidence interval for the mean amount of sleep from the remaining values is:

Television viewing reached a new high when the global information and measurement company reported a mean daily viewing time of 8.35 hours per household. use a normal probability distribution with a standard deviation of 2.5 hours to answer the following questions about daily television viewing per household. a. what is the probability that a household views television between 4 and 10 hours a day? (to 4 decimals) b. how many hours of television viewing must a household have in order to be in the top 7% of all television viewing household? (to 2 decimals) c. what is the probability that a household views television more than 4 hours a day? (to 4 decimals)