Which of the following will not increase the width of a confidence interval?
a. Increase the percentage of confidence from 80% to 90%
b. Reduce the sample size from n = 25 to n = 16
c. Increase the sample mean from MD = 2 to MD = 4
d. All of the other options will increase the width of a confidence interval.
C
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a. subject effects; experimenter and subject effects b. experimenter and subject effects; subject effects c. fatigue effects; practice effects d. practice effects; fatigue effects
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A) the explorative period. B) middle adolescence. C) late adolescence. D) early adolescence.
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