Use the Table Below to Answer the Following Questions) -From the Table Above, Calculate the Lower Confidence Interval Estimate

question 30

Multiple Choice

Use the table below to answer the following questions) .
The historical data of Velvetta Inc., a healthcare products manufacturer, have shown that in a production process for filling bottles of shampoo, variance in the volume is constant; however, clogs in the filling machine often affect the mean volume. The historical standard deviation is 5 milliliters. In filling 250-milliliter bottles, a sample of 20 found a mean volume of 242 milliliters. $$\begin{array}{l}\begin{array} { | l | l | } \hline\text { Velvetta Inc. Shampon }\\ \text { Productim } & \\\hline \text { Alpha Vulue } & 0.05 \\\hline \text { Standard Deviation } & 5 \\\hline \text { Sample Size } & 20 \\\hline \text { Sample Mean } & 242 \\\hline\end{array}\end{array}$$
-From the table above, calculate the lower confidence interval estimate at a confidence level of 95%

• A) 239.49
• B) 240.16
• C) 239.81
• D) 240.04

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Definitions:

Self-Efficacy

An individual's belief in their capacity to execute behaviors necessary to produce specific performance attainments.

Albert Bandura

A psychologist known for his work on social learning theory and the concept of self-efficacy.

Phenomenology

A philosophical approach that concentrates on the study of consciousness and the objects of direct experience, emphasizing the subjective perspective of individuals.

Skills

The ability to do something well, often as a result of knowledge, practice, and aptitude.