Asked by Manngopo
Suppose the results for stat 201 in 2014 are normally distributed with mean 160 and
standard deviation 18 . Find the probability that a random sample of size 36 gives a
sample mean value in the following cases
Question : between 120 and 220
p(120 < z < 220)
p(120-160/3 < z < 220-160/ 3)
p(-13.33 < z < 20)
got stuck...
standard deviation 18 . Find the probability that a random sample of size 36 gives a
sample mean value in the following cases
Question : between 120 and 220
p(120 < z < 220)
p(120-160/3 < z < 220-160/ 3)
p(-13.33 < z < 20)
got stuck...
Answers
Answered by
Damon
try
http://davidmlane.com/hyperstat/z_table.html
http://davidmlane.com/hyperstat/z_table.html
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