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The accompanying data represent the total travel tax (in dollars) for a 3-day business trip in 8 randomly selected cities, A normal probability plat suggests the data could o 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 a Click the icon to view the table of critical t-values. (Round to two decimal places as needed.) b) Construct and interpret 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 boxcs to complete your choice. Round to two decimal places as needed.) DA. 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 $ D. There is a % probability that the mean travel tax for all cities is between $ and $ What would you recommend to a researcher who wants to increase the precision of the interval. but doos not iave access to additional data? The researcher could decrease the sample standard deviation.

The accompanying data represent the total travel tax (in dollars) for a 3-day business trip in 8 randomly selected cities, A normal probability plat suggests the data could o 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 a Click the icon to view the table of critical t-values. (Round to two decimal places as needed.) b) Construct and interpret 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 boxcs to complete your choice. Round to two decimal places as needed.) DA. 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 $ D. There is a % probability that the mean travel tax for all cities is between $ and $ What would you recommend to a researcher who wants to increase the precision of the interval. but doos not iave access to additional data? The researcher could decrease the sample standard deviation.

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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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
Transcribed Image 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
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