The number of pairs of shoes owned by adult women is assumed

The number of pairs of shoes owned by adult women is assumed to follow a skewed distribution. A random sample of 10 women was taken and each woman was asked how many pairs of shoes she owned. Their responses were: 7 24 15 7 18 15 9 13 8 14

Using these date test the hypothesis that the median number of pairs of shoes owned by adult women is 12. Apply the sing test with a 5% level of significance.