Question

Find the indicated z score. The standard normal distribution with the mean 0 and standard deviation 1. Decimal---> 0.8997

Answer 1

so it looks you want to solve
P ( Z < a ) = .8997 , and you need to find 'a'

Answer 2

did you look on the table

Answer 3

you can also use TI 83

there is a command called invNorm , if you press 2nd Vars 3: invNorm

Answer 4

invNorm( .8997) = ?

Answer 5

Thank you!

Answer 6

1.27 or 1.28?

Answer 7

1.28 is fine