Question: (Please provide a breakdown and describe/show step by step details on how you arrived the answers so I can learn - thanks) QUESTION: Joe's Restaurant
(Please provide a breakdown and describe/show step by step details on how you arrived the answers so I can learn - thanks)
QUESTION: Joe's Restaurant & Fast Food claims you will be in and out in 5 minutes. To test this claim, time in minutes from entering Joe's to receiving the order was secretly taped. You can find the results in the DATA (Wait Time in Minutes) provided below.
At a 95% confidence level, does the confidence interval support Joe's claim?
(Note: Compute the confidence limits and decide if the confidence interval rejects 5 minutes? )
A) None of the answers match my calculations.
B) The confidence limits (4.77, 6.58) support the claim of 5 minutes. 5 falls in between the confidence limits. Joe's performance meets the expectation.
C) The confidence limits (1.62, 3.21) reject the claim of 5 minutes. 5 is greater than the upper confidence limit. Performance at Joe's is incredible.
D) The confidence limits (6.79, 8.56) reject the claim of 5 minutes. 5 is less than the lower confidence limit. Audit of Joe's procedures and employees is
recommended.
E) The confidence limits (2.77, 4.54) reject the claim of 5 minutes. 5 is greater than
the upper confidence limit. Joe's performance is exemplary.
DATA: Wait Time (minutes)
1.1
6.8
1.9
0.1
0.4
3.1
1.9
2.0
5.1
1.3
3.6
3.6
2.7
1.9
7.5
3.8
2.3
9.2
3.0
3.3
1.8
4.9
6.0
4.1
1.8
5.7
6.7
2.4
3.3
8.6
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