TABLE 12-18
as Part of an Evaluation Program, a Sporting

question 82

Short Answer

TABLE 12-18
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.
$$\begin{array} { l l l l l } \underline{\text { Trial }} & \underline{\text { Barth }} & \underline{\text { Tornado} } &\underline{ \text { Reiser }} &\underline{ \text { Shaw} } \\1 & 43 & 37 & 41 & 43 \\2 & 46 & 38 & 45 & 45 \\3 & 43 & 39 & 42 & 46\end{array}$$
-Referring to Table 12-18, to use the chi-square critical value for the Kruskal-Wallis test, the sample size in each group has to be greater than ______.

---

Definitions:

Crystallographic Data

Information obtained from crystallography, a method used to determine the atomic and molecular structure of crystals, revealing the arrangement of atoms in the crystalline solid.

Watson

James Watson, an American molecular biologist, geneticist, and zoologist, best known as one of the co-discoverers of the structure of DNA in 1953.

Crick

Best known as Francis Crick, he was a British scientist who co-discovered the structure of the DNA molecule alongside James Watson.

DNA Strands

The long, linear molecules composed of nucleotides that carry genetic information essential for cellular function and heredity.