Answer :
Answer:
What the question says is true.
Step-by-step explanation:
A x% confidence interval in the format (lower end, upper end) of a sample mean means that we are x% sure, that is, there is a x% chance, that the true mean of the sample is in this interval.
In this problem, we have that:
99% confidence interval is (50,60)
So there is a 99% chance that the sample mean is between 50 and 60.
So what the question says is true.