Use the Table Below to Answer the Following Question(s) -From the Table Above, Calculate The

question 41

Multiple Choice

Use the table below to answer the following question(s) .
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 average volume.The historical standard deviation is 5 milliliters.In filling 250-milliliter bottles, a sample of 20 found an average volume of 242 milliliters.
$\begin{array}{l|l}\hline \text { Velvetta Inc. Shampoo } & \\ \text { Production } & \\\hline \text { Alpha Value } & 0.05 \\\hline \text { Standard Deviation } & 5 \\\hline \text { Sample Size } & 20 \\\hline \text { Sample Average } & 2.42\end{array}$
-From the table above, calculate the $\frac { Z _ { \alpha } } { 2 }$ value at a 95% confidence interval.

• A)1.64
• B)1.84
• C)1.96
• D)2.19

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