Use the Sign Test to Test the Indicated Claim

Essay

Use the sign test to test the indicated claim. The waiting times (in minutes)of 28 randomly selected customers in a bank are given below. Use a significance level of 0.05 to test the claim that the population median is equal to 5.3 minutes. $\begin{array} { r r r r r r r } 8.2 & 8.0 & 10.5 & 3.8 & 6.4 & 5.3 & 7.8 \\2.9 & 6.0 & 7.7 & 6.1 & 5.9 & 1.2 & 10.4 \\7.3 & 6.9 & 5.8 & 5.1 & 6.2 & 3.1 & 5.8 \\11.7 & 4.5 & 6.5 & 9.8 & 7.4 & 2.3 & 7.8\end{array}$