Question 959069
If random samples of size 9 is taken from a normal distribution with mean 50 and standard deviation 18, then the distribution of the sample means will be normal with mean 50 and standard deviation 6. (true, false)
Ans: True
------------------------------

Find the value of k such that P(Z<k) =0.60. In other words the 60% percentile of the standard normal distribution.
Find the z-value with a left tail of 0.6
Ans: invNorm(0.6) = 0.2534
----------------
Cheers,
Stan H.
----------------