I have a kind of weird question. But this wont be a harder one.
Actually, i feel it is incomplete. I don't have much experience on statistics. But some advance user will be able to understand this (may be guess the incomplete parts). I'll post all the information i have. Please try to give an answer to this.
This is about a set of calls..
Number of calls taken, $N = 1000$
Mean value, $\mu = 240$
Standard deviation, ${\sigma} = 50$ (Can this be in seconds???)
Given above details, the question is something like "What is the ***"
of 1% of all are shorter: And the answer is 124s
Can someone please help me with this. Please explain what can be the question and show me how to solve it. I have some some knowledge on statistics and normal distribution..
Any help is greatly appreciated...
Thank you!