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:

Procedural Knowledge

Knowledge of how to perform tasks or procedures, often contrasted with declarative knowledge, which involves facts and information.

Social Situations

Contexts or scenarios that involve interactions among individuals or groups within a society.

Fear

Fear is an emotional response to perceived threats or danger, serving as a protective mechanism that can trigger fight-or-flight responses.

Implicit Association Test

A psychological tool designed to measure a person's automatic and unconscious associations between different concepts.