Word Problem ANSWERS: 1-Way ANOVA #8

Several samples of each flavor of ice tea are taken. Which flavor tastes the best (number of complaints):

                 Peach     Strawberry   Berry
                   4                3              20  
                   7                3              19 
                   6                7                8 
                   2                4              11 
                   2                1              10

Sum X         21           18              68               107
Sum X²     109           64          1046             1239
N                  5             5                5                 15
SS              20.8        19.20        121.20          161.20

Since you are interested in which soft drink did best/worst, which of the following tests should you perform:

a. t-test
b. ANOVA
c. correlation
d. regression
e. multiple regression

What is(are) the independent variable(s) in this design: Flavor

What is the dependent variable in this design:  Complaints

Based on above data, complete the following summary table:

                             SS        df         ms

Between          314.53      2      157.27

Within             161.20    12        13.43

TOTAL           475.73    14        33.98

What is the F for this test?   11.71

What is the critical value for F?   3.88

Is the F significant?   Yes

What should be done next?   t-tests

NOW YOU CHOOSE
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