Instruction 11-3
as Part of an Evaluation Program, a Sporting

question 142

Short Answer

Instruction 11-3
As part of an evaluation program, a sporting goods retailer wanted to compare the downhill coasting speeds of four brands of bicycles. She recorded three trials of each brand and determined their maximum downhill speeds. The results are presented in kilometres per hour in the table below.
$$\begin{array} { | l | l | l | l | l | } \hline \text { Trial } & \text { Barth } & \text { Tornado } & \text { Reiser } & \text { Shaw } \\\hline 1 & 43 & 37 & 41 & 43 \\\hline 2 & 46 & 38 & 45 & 45 \\\hline 3 & 43 & 39 & 42 & 46 \\\hline\end{array}$$
-Referring to Instruction 11-3,using an overall level of significance of 0.05,the critical range for the Tukey-Kramer procedure is ________.

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