Use Minitab to Perform a Kruskal-Wallis Test Using the P-Value

question 52

Essay

Use Minitab to perform a Kruskal-Wallis test using the P-value approach.
-A fire-science specialist tests three different brands of flares for their burning times (in minutes)and the results are given below for the sample data. At the 0.05 significance level, do the data provide sufficient evidence to conclude that a difference exists between the mean burn times of the three different brands? Use the Kruskal-Wallis test. $$\begin{array} { l l l l l l l l } \text { Brand X } & 16.4 & 17.6 & 18.3 & 17.0 & 17.1 & 17.3 & \\ \hline \text { Brand Y } & 17.9 & 18.0 & 17.8 & 18.4 & 17.6 & 19.0 & 19.1 \\ \hline \text { Brand Z } & 17.3 & 16.4 & 16.5 & 16.0 & 15.8 & 16.3 & 17.1 \end{array}$$

---

Definitions:

Sustainable

Relating to practices and methods that meet current needs without compromising the ability of future generations to meet theirs, often in the context of environmental conservation.

Temperate Deciduous Forests

Biomes characterized by four distinct seasons and trees that lose their leaves annually; found in temperate zones across the globe.

Greenhouse Gases

Trace gases in the atmosphere that allow the sun’s energy to penetrate to Earth’s surface but do not allow as much of it to escape as heat

Exotic Hardwoods

Wood from trees that are not native to a certain area, often considered more valuable or desirable for construction or furniture due to their rarity or unique properties.