Table 1 Statistical Process Control (SPC) Problem Data *The Range and Row Average Help You Avoid Simple Math

question 72

Multiple Choice

Table 1 Statistical Process Control (SPC) Problem Data*
$\begin{array}{|c|c|c|c|c|c|}\hline \text { Sample } & \begin{array}{c}\text { Observation } \\\text { Number }\end{array} & \begin{array}{c}\text { Observation } \\\text { Number }\end{array} & \begin{array}{c}\text { Observation } \\\text { Number }\end{array} \\\hline \text { Number } & 1 & 2 & 3 & \begin{array}{c}\text { Row } \\\text { Average }\end{array} & \text { Row Range } \\\hline 1 & 10.1 & 10.6 & 9.6 & 10.1 & 1.00 \\\hline 2 & 9.7 & 9.4 & 9.0 & 9.37 & 0.70 \\\hline 3 & 10.1 & 9.1 & 10.3 & 9.83 & 1.20 \\\hline 4 & 10.1 & 10.3 & 10.9 & 10.43 & 0.80 \\\hline 5 & 10.2 & 9.8 & 9.0 & 9.67 & 1.20 \\\hline 6 & 10.6 & 10.2 & 9.5 & 10.10 & 1.10 \\\hline 7 & 9.5 & 10.2 & 10.2 & 9.97 & 0.70 \\\hline\end{array}$ *The range and row average help you avoid simple math errors and quicken the time to complete the SPC analysis but you have to know what to use when.
-Given the previous results and analysis for the R-chart, one would:

• A) conclude that the R-chart is in statistical control and proceed to develop the x-bar chart.
• B) conclude that the R-chart is not in statistical control and proceed to develop the x-bar chart.
• C) investigate sample # 3 as it is outside the R-chart control limits and redo the R-chart.
• D) plot the x-bar sample means first to see if they are randomly distributed.

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Definitions:

Violent Films

Movies that contain scenes of physical aggression, which can have varying effects on different audiences.

Aggressive Behavior

Actions intended to harm or cause discomfort to another person.

Control Group

In experimental research, the group of subjects that does not receive the experimental treatment, serving as a baseline for comparison.

Independent Variable

A variable in research that is manipulated or changed to observe its effect on a dependent variable.