A multi-level marketing company in San Francisco claims that its new protein supplement is effective in increasing the height of children. The data of heights (in cm) of 12 children is recorded before and after consuming the protein supplement. Test the company's claim at a 10% level of significance using the p-value. Assume the data is not normally distributed.

Given data: ht_before = [121, 125, 130, 120, 145, 126, 134, 133, 135, 123, 140, 127]

ht_after = [130, 129, 148, 122, 147, 130, 148, 142, 141, 126, 144, 132] (5 Marks)

H0 :San Francisco claims that its new protein supplement is effective in increasing the height of children

H1 : San Francisco claims that its new protein supplement is not effective in increasing the height of children