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:

Accounts Receivable

A financial record representing the money owed to a company by its customers for goods or services delivered on credit.

Profitability Ratio

A category of financial metrics used to assess a business's ability to generate earnings relative to its revenue, assets, equity, or other financial aspects.

Payout Ratio

A financial metric indicating the proportion of earnings a company pays to its shareholders in dividends, expressed as a percentage of the company's net income.

Times Interest Earned

Times Interest Earned is a financial metric that measures a company's ability to meet its interest obligations, calculated as earnings before interest and taxes divided by interest expense.