The proportion of observations from a standard Normal distri

The proportion of observations from a standard Normal distribution that take values greater than 1.63 is about (±0.001)

Solution

Using a table, we

1. Look at the z = 1.6 row.
2. Look at the 0.03 column.
3. See where these two meet.
4. You have the left tailed value now. Subtract this result from 1 to get the right tailed area.

Doing this,

P(z>1.63) = 0.0516 [answer]