A psychologist examines retention of a learned task in monkeys. At 90 days 5 monkeys are trained on a discrimination task. Then their performance is tested again at 4 months, 6 months, and 1 year. A partial ANOVA summary table follows. The data were analyzed using a repeated-measures ANOVA. Answer the following: Describe the null and alternative hypotheses. Then complete the source table. df MS Source Between treatments SS 11 Within treatments Between subjects Error 40 Total 143

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A psychologist examines retention of a learned task in monkeys. At 90 days 5 monkeys are trained on a discrimination
task. Then their performance is tested again at 4 months, 6 months, and 1 year. A partial ANOVA summary table
follows. The data were analyzed using a repeated-measures ANOVA. Answer the following:
Describe the null and alternative hypotheses. Then complete the source table.
Source
Between treatments
SS
df
MS
F
11
Within treatments
Between subjects
Error
40
Total
143
Transcribed Image Text:A psychologist examines retention of a learned task in monkeys. At 90 days 5 monkeys are trained on a discrimination task. Then their performance is tested again at 4 months, 6 months, and 1 year. A partial ANOVA summary table follows. The data were analyzed using a repeated-measures ANOVA. Answer the following: Describe the null and alternative hypotheses. Then complete the source table. Source Between treatments SS df MS F 11 Within treatments Between subjects Error 40 Total 143
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