TABLE 11-11
a Student Team in a Business Statistics Course

question 154

Short Answer

TABLE 11-11
A student team in a business statistics course designed an experiment to investigate whether the brand of bubblegum used affected the size of bubbles they could blow. To reduce the person-to-person variability, the students decided to use a randomized block design using themselves as blocks. Four brands of bubblegum were tested. A student chewed two pieces of a brand of gum and then blew a bubble, attempting to make it as big as possible. Another student measured the diameter of the bubble at its biggest point. The following table gives the diameters of the bubbles (in inches) for the 16 observations.
$$\begin{array}{l}\text { Brand of Bubblegum }\\\begin{array} { l c c c c } \hline \text { Student } & \text { A } & \text { B } & \text { C } & \text { D } \\\hline \text { Kyle } & 8.75 & 9.50 & 8.50 & 11.50 \\\text { Sarah } & 9.50 & 4.00 & 8.50 & 11.00 \\\text { Leigh } & 9.25 & 5.50 & 7.50 & 7.50 \\\text { Isaac } & 9.50 & 8.50 & 7.50 & 7.50 \\\hline\end{array}\end{array}$$
-Referring to Table 11-11, the among-group variation or SSA is ______.

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Definitions:

Customizing Production

The process of modifying and adapting the manufacturing process to meet specific customer requirements or preferences.

Executive Pay

Compensation awarded to top-level management and executives, including salaries, bonuses, stock options, and other financial rewards.

Public Scrutiny

The examination and critical observation of an individual, company, or process by the general public, often facilitated by media outlets.

Average Workers' Pay

The mean wage earned by employees in a specific job, industry, or region, calculated by dividing total wages by the number of workers.