Conduct a Tukey Multiple Comparison

question 31

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 breaking strengths of four different kinds of thread. Use a 95% family confidence level. Independent random samples of the four different kinds of thread yielded the following breaking strengths in ounces. $$\begin{array} { c | c | c | c } \text { Thread A } & \text { Thread B } & \text { Thread C } & \text { Thread D } \\ \hline 14 & 18 & 21 & 19 \\ 16 & 19 & 22 & 17 \\ 16 & 19 & 21 & 18 \\ 15 & 20 & 23 & 19 \\ 15 & & 23 & \end{array}$$

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Definitions:

Centimeters

A unit of length in the metric system equal to one hundredth of a meter.

Meters

The base unit of length in the International System of Units (SI), equal to approximately 39.37 inches.

Centimeters

A measurement within the metric system that is equivalent to 0.01 meters.

Mass

A measure of the amount of matter in an object, typically measured in kilograms or grams.