a) What is the 99th percentile of the Standard Normal (z) DIstribution?

Question

b) Between what two values is the middle 99% of the Standard Normal (z) DIstribution?
[hint: you may need to take the z values here to a third decomal place in part b]

Answer 1

You can play around with Z table stuff at
davidmlane.com/hyperstat/z_table.html