Question 1183214
this is a z-test with z=(x bar-mean)/sigma/sqrt (n)
z < (90-95)/14/sqrt(30)
z < -5*sqrt(30)/14 inverting and multiplying to deal with division.
z < -1.956
0.0252 is probability
The sd of the sampling distribution is 14/sqrt(30) or 2.556
Then it is z < -5/2.556