Answer:
The correct option is d
Step-by-step explanation:
From the question we are told that
The sample size is n = 64
The mean is 
The standard deviation is 
Generally the standard error of the mean is mathematically represented as

=> 
=> 
200,000 You are very welcome.
Answer:
5
Step-by-step explanation:
Answer:
if my calculator is not wrong Is 21
Answer:
(-4,-8)
Step-by-step explanation:
Got It Right On Edge