a. Describe the sampling distribution of x¯. b.what is P(x¯<62.6) c.what is P(x¯>68.7) d. what is P(59.8<x¯<65.9)

Question

A simple random sample size n= 36 is obtained from a population with m= 64 and o= 18.
a. Describe the sampling distribution of x¯.
b.what is P(x¯<62.6)
c.what is P(x¯>68.7)
d. what is P(59.8<x¯<65.9)

Answer 1

(a) the sampling distribution  is approximately normal.

 

What formula have you learned that you would use for the other parts?