Airline
Ten Business People Who Fly Frequently Were Asked to Rank

Airline
Ten business people who fly frequently were asked to rank four airlines in terms of the quality of service.The people assigned scores using a 5-point scale where: 1 = bad,2 = poor,3 = average,4 = good,and 5 = excellent.The results are shown below: $$\begin{array}{l}\text { Airline }\\\begin{array} { | c | c c c c | } \hline \text { Person } & \text { A } & \text { B } & \text { C } & \text { D } \\\hline 1 & 1 & 3 & 5 & 2 \\2 & 5 & 4 & 2 & 1 \\3 & 2 & 5 & 3 & 2 \\4 & 4 & 2 & 4 & 1 \\5 & 3 & 3 & 1 & 5 \\6 & 4 & 4 & 5 & 3 \\7 & 3 & 4 & 1 & 4 \\8 & 2 & 5 & 2 & 1 \\9 & 5 & 3 & 4 & 2 \\10 & 5 & 5 & 4 & 3 \\\hline\end{array}\end{array}$$
-Which test is appropriate if you want to compare the quality of service of the four airlines?