$\text { TABLE 11-11 }$ A Student Team in a Business Statistics Course Designed an Business

question 13

Short Answer

$\text { TABLE 11-11 }$

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, is it appropriate to use the Tukey multiple comparison procedure based on the test result above?

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Definitions:

Revenues

The total amount of income generated by the sale of goods or services related to the company's primary operations.

Expenses

The costs incurred during the operation of a business, which may include payments to suppliers, salaries, and utility bills.

Accounting Process

A systematic series of steps undertaken by an organization to record financial transactions, summarize these transactions, and prepare financial statements.

Information Users

Individuals or entities that use financial information to make decisions, including investors, creditors, and management.