TABLE 11-11
a Student Team in a Business Statistics

question 179

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 11-6, what is the critical value of Levene's test for homogeneity of variances at a 5% level of significance?

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Definitions:

Strategic Alliances

Strategic alliances are agreements between two or more parties to pursue a set of agreed-upon objectives while remaining independent organizations.

Information Technology Utilization

The process of deploying and using information and communication technologies effectively in various operations and activities.

Network Structures

A pattern of connections and relationships between individuals, groups, or entities, often visualized in organizational or communication contexts.

Overhead

The ongoing administrative and operational costs not directly tied to the production of goods or services in a business.