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A cognitive psychologists knows that concrete words, which easily evoke images (.e.g. "sunset", "truck") are easier to remember than abstract words, but she would like to know if those who frequently use visual imagery differ from those with little visual imagery when trying to memorize these two types of words. She conducts a 2X2 experiment with give subjects in each cell and measures the number of words each subject recalls. The data appear in the following table:
visualizers
Nonvisualizers
Concrete words
17
20
18
21
T=96
19
T=91
Abstract words
14
15
16
T=77
T=89
G=353, ΣX2=6295
a. State all the appropriate null and alternative hypotheses
b. Carry out the appropriate test and summarize all the information in an ANOVA summary table
c. State your conclusions
d. Create a plot for the data
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