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

question 186

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, 95% of the sample means 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:

Cash

Money in the form of coins or banknotes, especially that of a country or a particular denomination.

Bonds Payable

Long-term liabilities representing borrowed money that the company is obligated to repay to bondholders, typically at fixed interest rates.

Issuance

The process of offering new securities for sale to investors, typically by a corporation or government.

Face Amount

The nominal value printed on the face of a financial instrument, such as a bond or insurance policy, representing the amount due at maturity.