Refer to the Advances in Cognitive Psychology (Jan. 2013) study of influencing performance in a classic psychological
Question:
a. Identify the parameter of interest for this study.
b. What is the desired confidence level?
c. What is the desired sampling error?
d. Find the sample size required to obtain the desired estimate. Assume n1 = n2.
e. Repeat part d, but now assume that twice as many students will be sampled in the first group as in the second group, i.e., assume n1 = 2n2.
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