A researcher is comparing the effectiveness of two sets of instructions for assembling a child's bike. A
Question:
Instruction Set I _____________ Instruction Set II
8 .............................................. 14
4 ............................................... 10
8 ................................................. 6
4 ............................................... 10
a. Is there a significant difference in time for the two sets of instructions? Use a two-tailed test at the .05 level of significance.
b. Calculate the estimated Cohen's d and r2 to measure effect size for this study?
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Related Book For
Statistics For The Behavioral Sciences
ISBN: 9781111830991
9th Edition
Authors: Frederick J Gravetter, Larry B. Wallnau
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