Question 618318
  <pre><font face = "Tohoma" size = 3 color = "indigo"><b> 
Hi,
normal population has &#956; = 30 and &#963; = 7. 
determine the mean of X and standard deviation of X.
 random sample of size n = 6
<span style="text-decoration: overline">X</span> = 30
 s = {{{7/sqrt(6)}}}