(Steps Shown) if the personal director wishes to take a survey in a branch office, what sample size is needed if the director wants 95% confident of being
Question: if the personal director wishes to take a survey in a branch office, what sample size is needed if the director wants 95% confident of being correct to with in + - 1.5 days and the population standard deviation is known to be 4.5 days
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(See Solution) What sample size is needed if the director wants
Solution: Select a quantitative variable for which you have some
(Step-by-Step) Select a qualitative variable with two possible
![[Step-by-Step] Consider the one-sided confidence interval expression](/images/solutions/MC-solution-library-40498.jpg "[Step-by-Step] Consider the one-sided confidence interval expression")
[Step-by-Step] Consider the one-sided confidence interval expression
![[See Solution] The fraction of defective integrated](/images/solutions/MC-solution-library-40499.jpg "[See Solution] The fraction of defective integrated circuits produced")
[See Solution] The fraction of defective integrated circuits produced
Confidence Interval Calculator for the Mean (Unknown Pop. Standard Deviation) - MathCracker.com