Must be completed by hand without use of statistical program

A study was conducted to compare five different types of candies. The variable of interest was the "taste value." A group of 300 people were asked to rate the taste from 1 (poor) to 4 (excellent), after tasting the candies. The candy types were Type A: Chewy from Expensive Brand 1 Type B: Crunchy from Expensive Brand 1 Type C: Chewy from Inexpensive Brand 2 Type D: Crunchy from Inexpensive Brand 2 Type E: Crunchy from Expensive Brand 3 The mean ratings for the five types are given below: Type A B C D E Mean Rating 2.32 2.56 3.22 2.94 3.76 The mean square error is 0.2457. a. Consider a contrast of {-2, -2, 3, 3, -2}. Please explain in words which combination of the 5 types of candy in this study is being compared with which other combination of the 5 types of candy in this study by this contrast. (Hint: Striving to understand the 4 contrasts and their associated a1, a2, a3, a4, and a5 values shown in Table 9.3 on page 111 in the textbook might prove helpful to you with answering this question.)