A researcher predicts people who eat excessive amounts of hot sauce will have decreased taste abilities. On a test of taste sensitivity, the average score for people in general is 19.4 (higher scores indicate better tasting) with a standard deviation of 3.15 (the scores are normally distributed). A sample of people who eat excessive amounts of hot sauce daily produce the follow scores on the taste sensitivity test: 17, 15, 20, 18, 17, 19, 18, 16, 19, 20, 13, 15. Do the data indicate that eating hot sauce has a significantly negative impact on taste? Test a=.01. Calculate the amount of effect using Cohen's d and interpret Cohen's d using specific IV/DV descriptors