(Students Must Compute the Range Per Sample and Overall R-Bar) $\text { Table 1-SPC Problem Data }$

question 25

Multiple Choice

(Students must compute the range per sample and overall r-bar)
$\text { Table 1-SPC Problem Data }$
$\text { Observation Number }$
$\begin{array}{|c|r|r|r|r|c|}\hline \text { Sample number } &1&2&3& 4 & 5 \\\hline 1 & 10.1 & 10.6 & 9.8 & 9.9 & 10.9 \\2 & 9.7 & 9.5 & 10.3 & 9.9 & 10.5 \\3 & 10.1 & 10.7 & 9.2 & 10.0 & 10.1 \\4 & 9.9 & 9.8 & 10.5 & 10.4 & 10.1 \\5 & 10.4 & 10.1 & 10.9 & 9.9 & 10.3 \\\hline\end{array}$
-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) conclude that the variation is not random, and therefore all samples should be investigated.

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Definitions:

Cum Dividend

A term used to describe a stock that is trading with the right to receive a dividend that has been declared but not yet paid.

Ex-Dividend Date

The specific date on which shares traded no longer come with the right to receive the most recently declared dividend.

Total Wealth

The complete value of an individual's or entity's assets minus liabilities.

Reverse Split

A reduction in the number of a company's shares outstanding that increases the share price proportionately.