The accompanying data represent the total travel tax (in dollars) fora 3-day business trip in 8 randomly selected cities, A ormal probability plat suggests the data could come irorm a population that...

Extracted text: The accompanying data represent the total travel tax (in dollars) fora 3-day business trip in 8 randomly selected cities, A ormal probability plat suggests the data could come irorm a population that is normally distributed. A bo indicates there are no outliers. Complete parts (a) through (c) below. 68.64 79.94 69.33 83.77 80.87 87.54 101.43 99.76 O E Click the icon to view the table of critical t-values. (Round to two decimal places as needed.) (b) Construct and interprot a 95% confidence interval for the mean tax paid for a three day business trip Select the correct choice below and fill in the answer boxes to complete your choice. (Round to two decimal places as needed.) O A. The travel tax is between $ and $ for % of all cities O B. One can be % confident that the all cities have a travel tax between $ and $ OC. One can be % confident that the mean travel tax for all cities is between $ and $ OD |% probability that the mean travel tax for all cities is between $ ard $ There is a (c) What would you rocommend to a researcher who wants to increase the precision of the interval, but does not have access to additional data? O A. The researcher could decrease the sample standard deviation. (u,u) More Statcrunch