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

question 23

Short Answer

SCENARIO 8-13-A
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-DataA.XLSX. $$\begin{array} { l l l l l l l l l l } 495 & 499 & 502 & 500 & 491 & 498 & 498 & 495 & 488 & 516 \\513 & 486 & 504 & 503 & 493 & 504 & 489 & 500 & 495 & 499 \\501 & 507 & 511 & 496 & 486 & 497 & 510 & 504 & 493 & 482 \\511 & 502 & 520 & 514 & 486 & 514 & 500 & 505 & 512 & 500 \\504 & 498 & 503 & 514 & 474 & 489 & 488 & 506 & 517 & 490\end{array}$$ 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-A, the lower and upper bounds of the 95% confidence interval for the
mean number of times the handles have been used to lift the bottles before they break are ____ and
_____.

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Definitions:

Variable Overhead Rate Variance

The difference between the actual variable overhead costs and the expected costs based on the standard variable overhead rate.

Planning Budget

A budget created for a particular period or project that estimates revenues, expenses, and other financial details ahead of time.

Patient-Visits

Refers to the number of times patients go to see a healthcare professional or the number of consultations a healthcare facility has within a given timeframe.

Budgeting

The process of creating a plan to spend your money, allocating estimated revenues towards expenses, savings, and debt repayment.