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

question 151

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 width 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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Solar Energy

The radiant energy emitted by the sun, which can be harnessed using technologies such as solar panels to produce electricity.

Urban Sprawl

The uncontrolled expansion of urban areas into surrounding rural areas, resulting in a spread-out or low-density residential development.

Environmental Impact

The effect of human activities on the natural environment, encompassing changes to ecosystems, biodiversity, and natural resources.

Ecocity

A city designed with careful consideration of environmental impacts, integrating sustainable resources, and aiming to reduce waste and pollution while improving the quality of life for its inhabitants.