THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION

Essay

THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION:
A brand manager is interested in determining if consumers prefer the new fragrance associated with a detergent.She surveyed 212 consumers and has them rank the new and old fragrances on a scale of 1 to 10.Of the 198 consumers who scored a different score on the new fragrance than on the old,the absolute values of the differences in their ratings were ranked.The smaller of the ranked sums,8,208,was for those individuals who rated the original fragrance higher.
-A stock market analyst produced at the beginning of the year a list of stocks to buy and another list of stocks to sell.For a random sample of 10 stocks from the "buy list," percentage returns over the year were as follows:

For an independent random sample of 10 stocks from the "sell list," percentage returns over the year were as follows:

Use the Mann-Whitney test to interpret these data.