A Convenience Store Owner Believes That the Median Number of Lottery

Essay

A convenience store owner believes that the median number of lottery tickets sold per day is 54. The lottery company believes the median number is smaller. A random sample of 20 days yields the following data. Test the lottery company's claim. Use ? = 0.05. $$\begin{array} { l l l l l l l l l l } 25 & 41 & 52 & 57 & 24 & 48 & 63 & 20 & 26 & 31 \\40 & 47 & 47 & 37 & 37 & 42 & 42 & 52 & 47 & 31\end{array}$$