Answer:
I think its A. Hope this helps !!!!
Explanation:
Answer:
The z score can be calculated by the difference of population and sample mean divided by standard error. Standard error can be calculated as the standard deviation divided by square root of sample size From the given the standard error: SE = 12/sqrt (20) = 2.68 Z = (208 -195)/2.68 = 4.85
Explanation:
A is definitely the answer. It is the only one that makes sense.
