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

question 119

True/False

SCENARIO 9-11-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 Scenario9-11-DataB.XLSX. $$\begin{array} { l l l l l l l l l l } 1493 & 1506 & 1515 & 1491 & 1500 & 1505 & 1517 & 1510 & 1506 & 1503 \\1503 & 1491 & 1495 & 1496 & 1496 & 1505 & 1493 & 1486 & 1504 & 1483 \\1514 & 1494 & 1497 & 1501 & 1493 & 1490 & 1510 & 1494 & 1494 & 1495 \\1494 & 1486 & 1495 & 1506 & 1506 & 1507 & 1502 & 1498 & 1510 & 1501 \\1500 & 1505 & 1492 & 1486 & 1501 & 1496 & 1501 & 1521 & 1510 & 1498\end{array}$$ 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-B, you can conclude that there is not enough
evidence that the mean number of times the handles have been used to lift the bottles before they
break is more than 1500 when allowing for a 1% probability of committing a Type I error.

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Definitions:

Ventral Prefrontal Regions

The ventral prefrontal regions are areas of the frontal lobes of the brain implicated in processing emotion and regulating social behavior.

Amygdala Volumes

Refers to the size of the amygdala, a region of the brain involved in emotions, decision-making, and memory processes, and its association with various psychological conditions.

Cerebellar Volume

The total space occupied by the cerebellum, a region of the brain that plays an important role in motor control.

Remember Series

A method or strategy designed to enhance memory retention.