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SCENARIO 9-11-A
You Are the Quality Control Manager of a Water

question 49

True/False

SCENARIO 9-11-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
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 Scenario9-11-DataA.XLSX. 14951499150215001491149814981495148815161513148615041503149315041489150014951499150115071511149614861497151015041493148215111502152015141486151415001505151215001504149815031514147414891488150615171490\begin{array} { l l l l l l l l l l } 1495 & 1499 & 1502 & 1500 & 1491 & 1498 & 1498 & 1495 & 1488 & 1516 \\1513 & 1486 & 1504 & 1503 & 1493 & 1504 & 1489 & 1500 & 1495 & 1499 \\1501 & 1507 & 1511 & 1496 & 1486 & 1497 & 1510 & 1504 & 1493 & 1482 \\1511 & 1502 & 1520 & 1514 & 1486 & 1514 & 1500 & 1505 & 1512 & 1500 \\1504 & 1498 & 1503 & 1514 & 1474 & 1489 & 1488 & 1506 & 1517 & 1490\end{array} Assume that the number of times the handles have been used to lift the bottles before they break
follows a normal distribution. You want to test to see if there is enough evidence that the mean
number of times the handles have been used to lift the bottles before they break is more than 1500.
-Referring to Scenario 9-11-A, the null hypothesis will be rejected at 1% level of
significance.


Definitions:

New Product

An item that has been introduced to the market recently, offering new characteristics or purposes that distinguish it from existing products.

Directing

A management function that involves guiding, leading, and overseeing the work of employees to achieve organizational objectives.

Training

A process of learning and development which aims to enhance the skills, knowledge, and competencies of employees or individuals.

Work Schedules

The planned hours and days that employees are expected to work, often detailing start and end times for shifts.

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