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

question 212

Short Answer

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, the sampling error of the 95% confidence interval for the mean
number of times the handles have been used to lift the bottles before they break is _____.

---

Definitions:

Contestable Markets

Markets where entry and exit are costless or very low, making the market susceptible to potential competition.

Differentiates Oligopoly

A characteristic of oligopoly markets where few firms dominate and each firm tries to distinguish its product or service from those of competitors.

Contestable

A market characteristic where there are no barriers to entry or exit, allowing potential competition to challenge existing firms, keeping prices competitive.

Market

A market is any structure that allows buyers and sellers to exchange any type of goods, services, and information.