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

question 61

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 critical value used to construct the 95% confidence interval for
the mean number of times the handles have been used to lift the bottles before they break is _____.

Know the strengths and limitations of naturalistic observation and self-reports.

Recognize the influence of different systems on human development according to Bronfenbrenner's theory.

Understand the basic structure and components of a syllogism.

Identify major, minor, and middle terms in a syllogism.

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Definitions:

Sample Proportion

The proportion or percentage of the sample that embodies a specific characteristic or feature.

Population Proportion

The ratio or percentage of a particular group within a larger population that shares a characteristic.

Continuity Correction Factor

An adjustment made to a discrete probability distribution when approximating it by a continuous distribution.

Standard Error

The standard deviation of the sampling distribution of a statistic, most commonly of the mean.