The average time spent in 200? by households in a certain country tuned into television was 3 hours and 15 minutes per day. To determine if television viewing changed in 2008. a sample (in minutes) similar to the accompanying data would be used. Complete parts a and b below. a Click the icon to view the television watching times. a. Calculate the sample standard deviation and mean number of minutes spent viewing television x: min (Round to three decimal places as needed.) s = min (Round to three decimal places as needed.) b. Calculate a 95% condence interval for the average number of minutes spent viewing television in 2008. The 95% condence interval is min min. (Round to three decimal places as needed. Use ascending order.)