Estimate the Process Standard Deviation

question 3

Multiple Choice

Estimate the process standard deviation.
-An automatic filling process is used to dispense hand sanitizer into small purse size
Bottles. The target weight is 75 ml. The company has initiated control charting to
Stabilize and improve the automatic filling process. For each of twenty-five samples
Consisting of four bottles, the contents were measured and the mean weight and range
Were determined. The average of the means across all samples was found to be 72.5 ml.
And the average range was 2.75 ml. The estimate of the process standard deviation is

• A) 2.75 ml
• B) 2.44 ml
• C) 1.88 ml
• D) 1.34 ml
• E) None of the above

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Definitions:

Fruit

The ripened ovary, along with its seeds, of a flowering plant, usually eaten as food.

Grape

A small, round fruit, usually purple, green, or red, grown in clusters on vines, used for eating fresh or making wine.

Heuristics

Heuristics are mental shortcuts or rules of thumb that simplify decision making, often at the cost of accuracy or completeness.

Algorithms

Step-by-step procedures or formulas for solving problems or performing tasks.