SOLUTION: average yearly cost $186.60 randomly select 30 probability sample mean for the 30 is less than $187.00? assume s.d. is $27.00

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Question 320012: average yearly cost $186.60
randomly select 30
probability sample mean for the 30 is less than $187.00?
assume s.d. is $27.00
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
What is the question?
Cheers,
Stan H.