Question
Population is birth weight (in grams) for all babies born in Indiana in 2004. It has...
Population is birth weight (in grams) for all babies born in Indiana in 2004. It has μ=3,287; σ^2=360,000.
If we sample 100 babies, what are μ_X ̅ and σ_X ̅ ?
Homework Answers
Answer #1
Solution :
Given that ,
mean = 
= 3287
standard deviation = 
= 
360000=600
n = 100
sample distribution of sample mean is ,
=
= 3287
sampling distribution of standard deviation
= /
n = 600 /
100=60
= 60
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