SCENARIO 8-13-B
You Are the Quality Control Manager of a Water

question 29

Short Answer

SCENARIO 8-13-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
bottle to 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 Scenario8-13-DataB.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 the population standard deviation is 5 and the number of times the handles have been
used to lift the bottles before they break follows a normal distribution.
-Referring to Scenario 8-13-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 _____.

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Definitions:

Net Sales

The amount of revenue a company generates from its operations after deducting returns, allowances for damaged or missing goods, and discounts.

Gross Profit

The financial gain obtained after subtracting the cost of goods sold from total revenue, indicating the efficiency of a company in managing its production and labor costs.

Net Sales

The amount of sales revenue remaining after deducting returns, allowances, and discounts from total sales.

Cost Of Goods Sold

Cost of goods sold (COGS) is the direct cost attributable to the production of the goods sold by a company, including the cost of materials and labor.