Conduct a Tukey Multiple Comparison

question 66

Essay

Conduct a Tukey multiple comparison. Display the confidence intervals in a table. State which population means can bedeclared different.
-Perform a Tukey multiple comparison to compare the lifetimes of flashlight batteries of three different brands. Use a family confidence level of 0.95. Independent random samples of batteries of the three different brands yielded the following lifetimes in hours. $$\begin{array} { c | c | c } \text { Brand A } & \text { Brand B } & \text { Brand C } \\ \hline 38 & 32 & 24 \\ 36 & 27 & 25 \\ 31 & 28 & 29 \\ 42 & & 26 \\ 29 & & \end{array}$$

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Definitions:

Behavior Change

A modification in an individual's behavior patterns, attitudes, or actions.

Multiple Baseline Design

A method of graphing behavioral observations that provides a way to evaluate the effectiveness of an intervention when a reversal design is not desirable. A multiple baseline design permits recording and analyzing behavioral observations from three variables: (1) two or more behaviors associated with one student in a single setting, (2) two or more students exhibiting the same behavior in a single setting, and (3) two or more settings in which one student is exhibiting the same behavior.

Reversal Design

An experimental technique where a behavior is measured before and after a treatment is introduced, and then once again when the treatment is removed.

Intervention

Actions or strategies implemented to produce a change in a situation or in the behavior of individuals, often within educational or therapeutic contexts.