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Author Question: Parking at a large university can be extremely difficult at times. One particular university is ... (Read 88 times)

mp14

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Parking at a large university can be extremely difficult at times. One particular university is trying to determine the location of a new parking garage. As part of their research, officials are interested in estimating the average parking time of students from within the various colleges on campus. A survey of 338 College of Business (COBA) students yields the following descriptive information regarding the length of time (in minutes) it took them to find a parking spot. Note that the "Lo 95%" and "Up 95%" refer to the endpoints of the desired confidence interval.

Variable         N     Lo 95% CI       Mean      Up 95% CI         SD
Parking Time    338      9.1944         10.466      11.738         11.885

Give a practical interpretation for the 95% confidence interval given above.
◦ We are 95% confident that the average parking time of all COBA students falls between 9.19 and 11.74 minutes.
◦ We are 95% confident that the average parking time of the 338 COBA students surveyed falls between 9.19 and 11.74 minutes.
◦ 95% of the COBA students had parking times of 10.466 minutes.
◦ 95% of the COBA students had parking times that fell between 9.19 and 11.74 minutes.


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Marked as best answer by mp14 on Feb 14, 2020

onowka

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mp14

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Reply 2 on: Feb 14, 2020
Great answer, keep it coming :)


jackie

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Reply 3 on: Yesterday
Excellent

 

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