Cumulative proportions?

No, you cannot figure it out by hand.

You could use a different standard normal distribution

table sometimes called a z table

{ table IS NOT A RANDOM NUMBER TABLE}

or you could use Microsoft Excel

where you use

=normdist(1.15,0,1,1)

The format of Excel's normdist function is

=normdist(z,µ,σ,1)

of course z is the observed z

With z tables, µ is always 0 and σ is always 1

and the second 1 is to indicate that it is the actual

Cumulative proportion, not simply the ordinate of

the normal distribution{height of density function}

You will allways need that 1 so

use

=normdist(z,0,1,1)

You cannot do this by hand because the formula for

the normal distribution is EXTREMELY unwieldy, you need

computers or calculators(or tables). By hand, one would

use some long numerical methods.