PLEASE USE SAS ONLINE WHICH IS FREE or excel online AND AND ASLO WITH HAND CALCULATIOS. CODE ALSO NEEDED.

3. Researchers from the Department of Fruit Crops at a university compared four different preservatives to be used in freezing strawberries. The researchers prepared the yield from a strawberry patch for freezing and randomly divided it into four equal groups. Within each group, they treated the strawberries with the appropriate preservative and packaged them into eight small plastic bags for freezing at 0C. The bags in group Iserved as a control group, while those in groups II, III, and IV were assigned one of the three newly developed preservatives. After all 32 bags of strawberries were prepared, they were stored at 0C for a period of 6 months. At the end of this time, the contents of each bag were allowed to thaw and then rated on a scale of 1 to 10 points for discoloration. Note that a low score indicates little discoloration; a higher score means more discoloration. The ratings are in the attached data set. Use SAS to answer the following questions, and append your code to the end of your homework assignment. a. Use ANOVA to test whether there is a difference in the mean ratings using a = 0.01 Check the ANOVA assumptions. Place a 95% confidence interval on the mean rating for each of the groups. In many situations in which the response is a rating rather than an actual measurement, it is recommended that the KruskalWallis test be used. Apply the KruskalWallis test to determine whether there is a shift in the distribution of ratings for the four groups using a = 0.01 9953' e. Do the results from parts a. and d. agree