Direct charcterization i just learned that
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:
It won’t do you no good to try to talk yourself out of this one since you were caught red handed.