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

TABLE 11-3
As part of an evaluation program, a sporting goods retailer wanted to compare the downhill coasting speeds of 4 brands of bicycles. She took 3 of each brand and determined their maximum downhill speeds. The results are presented in miles per hour in the table below.
$\begin{array}{cccc} \underline{\text { Trial }}& \underline{\text { Barth }}& \underline{\text { Tornado }}& \underline{\text { Reiser }}& \underline{\text { Shaw }}\\1 & 43 & 37 & 41 & 43 \\2 & 46 & 38 & 45 & 45 \\3 & 43 & 39 & 42 & 46\end{array}$
-Referring to Table 11-3, the null hypothesis for Levene's test for homogeneity of variances is

A) H?: ?A = ?B = ?C = ?D.
B) H?: MA = MB = MC = MD.
C) $H _ { 0 } : \sigma _ { A } ^ { 2 } = \sigma _ { B } ^ { 2 } = \sigma _ { C } ^ { 2 } = \sigma _ { D } ^ { 2 }$
D) H?: ?A = ?B = ?C = ?D.

Correct Answer:

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