SCENARIO 8-12-B
You Are the Quality Control Manager of a Water

question 180

True/False

SCENARIO 8-12-B
You are the quality control manager of a water bottles company. One of the biggest complaints in the
past years has been the breakage and, hence, the concern on the durability of the connector between
the lid and the bottle which many users use as a handle for the bottles. To collect evidence before
implementing any modification to the production process, your department has subjected 50 water
bottles to a durability test and the following data on the number of times the handles have been used
to lift the bottles before they break are contained in the file SCENARIO 8-12-B.XLSX. $$\begin{array} { l l l l l l l l l l } 493 & 506 & 515 & 491 & 500 & 505 & 517 & 510 & 506 & 503 \\503 & 491 & 495 & 496 & 496 & 505 & 493 & 486 & 504 & 483 \\514 & 494 & 497 & 501 & 493 & 490 & 510 & 494 & 494 & 495 \\494 & 486 & 495 & 506 & 506 & 507 & 502 & 498 & 510 & 501 \\500 & 505 & 492 & 486 & 501 & 496 & 501 & 521 & 510 & 498\end{array}$$ Assume that and the number of times the handles have been used to lift the bottles before they break
follows a normal distribution.
-Referring to Scenario 8-12-B, it is possible that the mean of the population will fall
between the computed lower and upper limit of the 95% confidence interval for the mean number of
times the handles have been used to lift the bottles before they break.

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Definitions:

Raw Materials

Basic substances in their natural, modified, or semi-processed states used as inputs for production.

Distribution

The process of making goods or services available to consumers through various channels.

Downstream Activity

Processes in the supply chain that occur after the production phase, such as distribution, marketing, and sales to the end consumer.

SCM

Supply Chain Management, the handling of the entire production flow of a good or service — from the raw components all the way to delivering the final product to the consumer.