Bo Derek Calculates That She Needs a Sample Size of 200

question 29

Short Answer

Bo Derek calculates that she needs a sample size of 200, given the estimated mean, accuracy variance and required Z-score.However, she learns that the variance is actually one-half of what she originally believed.Her required sample size will now be
a) 100
b) 800
c) 400
d) 50
e) none of the above

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