QUEEIIUN 'I Use the following to answer questions 1-14. A researcher tests the effects of practice on memory span (how many items (e.g., numbers) a
QUEEIIUN 'I Use the following to answer questions 1-14. A researcher tests the effects of practice on memory span (how many items (e.g., numbers) a person can keep in mind at once). Toward this end she recruits 5 participants. Each participant's memory span is tested 3 times: before practicing, aer 1 week of practice, and aer 2 weeks of practice. The data are presented in the table below. Answer the following questions using an alpha of .05. Before 1 week of 2 weeks of Practice practice practice 5.00 6.00 6.00 6.00 7.00 8.00 7.00 7.00 9.00 8.00 8.00 10.00 9.00 9.00 9.00 Mean 7.00 7.40 8.40 SStotal : 29.60 What is the independent variable in this study? Firm of test 0 Memory span 0 Number of participants 0 Means QUESTION 7 What is the critical F value for this analysis? 0 3.34 O 4.4-6 0 6.04 O 19.00 QUESTION 8 What is the SSbctwcengroups value? 0 2.80 O 5.20 O 21.60 0 24.40 QUESTION 9 What is the 88mm value? 0 2.80 O 5.20 O 21.60 0 24.40
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