1, it is shifted 4 units up
Answer: 30
Step-by-step explanation:
Answer:
I think that you are missing parts of your question as it is just a statement
Step-by-step explanation:
Answer:

Step-by-step explanation:
The Central Limit Theorem estabilishes that, for a random variable X, with mean
and standard deviation
, the sample means with size n of at least 30 can be approximated to a normal distribution with mean
and standard deviation 
In this problem, we have that:

So
