Use the Rank Correlation Coefficient to Test for a Correlation

question 64

Essay

Use the rank correlation coefficient to test for a correlation between the two variables?
Ten trucks were ranked according to their comfort levels and their prices. $$\begin{array} { c c c } \text { Make } & \text { Comfort } & \text { Price } \\\hline \text { A } & 1 & 6 \\\text { B } & 6 & 2 \\\text { C } & 2 & 3 \\\text { D } & 8 & 1 \\\text { E } & 4 & 4 \\\text { F } & 7 & 8 \\\text { G } & 9 & 10 \\\text { H } & 10 & 9 \\\text { I } & 3 & 5 \\\text { J } & 5 & 7\end{array}$$ Find the rank correlation coefficient and test the claim of correlation between comfort and
price. Use a significance level of 0.05.

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Definitions:

Fluctuates

Describes variations or changes in state or level over time, often in an unpredictable manner.

Increases

An upward trend or movement in numbers, size, strength, or another measurable factor.

Longitudinal

An observational research method in which data is gathered for the same subjects repeatedly over a period of time.

Participants

Participants are individuals who take part in a process or activity, especially in research or experiments.