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  Bobo's Bobo's Bad Burgers fast food claims you will be in and...

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Asked by BrigadierSeaUrchin2810 on coursehero.com

  Bobo's Bobo's Bad Burgers fast food claims you will be in and...

 

Bobo's Bobo's Bad Burgers fast food claims you will be in and out in 5 minutes. To test this claim, time in minutes from entering Bobo's to receiving the order was secretly recorded. The results are documented below. At a 95% confidence level, does the confidence interval support Bobo's claim?

Wait Time (minutes) 
5.18.1
10.85.5
6.212.3
4.36.4
5.77.2
7.37.6
4.79.2
7.58.9
8.76.9
5.54.8
8.79.4
7.711.7
6.55.6
6.27.1
11.413.4

The confidence limits (4.77,6.58) support the claim of 5 minutes. 5 falls inbetween the confidence limits. Bobo's performance meets the expectation.

The confidence limits (1.62,3.21) reject the claim of 5 minutes. 5 is greater than the upper confidence limit. Performance at Bobo's is incredible.
The confidence limits (2.77, 4.54) reject the claim of 5 minutes. 5 is greater than the upper confidence limit. Bobo's performance is exemplary.
None of the answers match my calculations.

The confidence limits (6.79,8.56) reject the claim of 5 minutes. 5 is less than the lower confidence limit. Audit of Bobo's procedures and employees is recommended.

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Answered by RheaDawnIlaga on coursehero.com

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