A statistician wants to estimate the mean loss suffered by Delta pilots in the labor negotiations...
A statistician wants to estimate the mean loss suffered by Delta pilots in the labor negotiations to lower Delta salaries to within $2500 with 95% confidence. From a first small survey, the standard deviation of the loss is estimated at $10,000. What size sample should the statistician select? 1
A. 206
B. 44
C. 7
D. None of the above
Homework Answers
Sample size = (Z
/2
* 
/ E)2
= ( 1.96 * 10000 / 2500 )2
= 61.5
Sample size = 62
Ans: None of the above.
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