SOLUTION: CONSIDER A NORMAL DISTRIBUTION WITH THE MEAN OF 104 AND STANDARD DEVIATION OF 20, IF YOU SELECT A SAMPLE OF N=16, THERE IS A 55% CHANGE THAT THE SAMPLE MEAN IS ABOVE WHAT VALUE?

Algebra ->  Probability-and-statistics -> SOLUTION: CONSIDER A NORMAL DISTRIBUTION WITH THE MEAN OF 104 AND STANDARD DEVIATION OF 20, IF YOU SELECT A SAMPLE OF N=16, THERE IS A 55% CHANGE THAT THE SAMPLE MEAN IS ABOVE WHAT VALUE?      Log On


   

Question 866268: CONSIDER A NORMAL DISTRIBUTION WITH THE MEAN OF 104 AND STANDARD DEVIATION OF 20, IF YOU SELECT A SAMPLE OF N=16, THERE IS A 55% CHANGE THAT THE SAMPLE MEAN IS ABOVE WHAT VALUE?
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!


Hi

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mean = 104, Sd = 20

Sample of 16, population s = 20/sqrt(16) = 5

invT(0.55, 15) = .127 = (X -104)/4

               X = 4(.127) + 104 = .508 +104 = 105