Assume that you have used the simple random sampling method and collected data from the order delivery
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Question:
- Assume that you have used the simple random sampling method and collected data from the order delivery process in this coffee shop for 8 days as given in Table 1 below. The CTQ used in Table 1 is "order delivery time" in minutes. It is assumed that tolerance limits include 99% of the items in the population and confidence level is 95%. Calculate the upper and lower tolerance limits (UTL and LTL).
Table 1. Data Set
Date | Start Time | X1 order delivery time | X2 order delivery time | X3 order delivery time | X4 order delivery time | X5 order delivery time |
01-14-2022 | 6:49:22 | 5.30 | 4.29 | 5.19 | 3.29 | 4.008 |
01-15-2022 | 7:49:37 | 3.56 | 3.32 | 6.01 | 4.11 | 5.12 |
01-16-2022 | 8:49:50 | 3.48 | 4.24 | 9.21 | 5.11 | 6.22 |
01-17-2022 | 9:50:01 | 4.22 | 3.36 | 8.33 | 4.15 | 7.19 |
01-18-2022 | 10:50:10 | 3.23 | 4.17 | 6.15 | 3.47 | 5.11 |
01-19-2022 | 11:50:21 | 4.57 | 3.24 | 7.57 | 3.59 | 3.29 |
01-21-2022 | 12:50:30 | 5.50 | 4.56 | 6.49 | 3.19 | 2.14 |
01-22-2022 | 1:50:39 | 5.51 | 5.39 | 7.39 | 4.15 | 5.49 |
Expert Answer:
To calculate the upper and lower tolerance limits UTL and LTL we need to use the statistical method ... View the full answer
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ISBN: 978-1337614689
9th edition
Authors: James M. Wahlen, Stephen P. Baginski, Mark Bradshaw
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