5 Suggest situations where the researcher should be more concerned with Type II error than with Type
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5 Suggest situations where the researcher should be more concerned with Type II error than with Type I error.
a How can the probability of a Type I error be reduced?
A Type II error?
b How does practical signifi cance differ from statistical signifi cance?
c Suppose you interview all the members of the freshman and senior classes and fi nd that 65 percent of the freshmen and 62 percent of the seniors favor a proposal to send Help Centers offshore. Is this difference signifi cant?
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