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

Question

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

Quizplus · Accepted Answer

The Answer of 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

Bo Derek Calculates That She Needs a Sample Size of 200