Question

Find the value of 2 Z’s when the area between Z’s = 0.8262. Round off values to 2 decimal places

Answer 1

Answer:

Hope it's helpful

Step-by-step explanation:

The area between

−

z

and

+

z

=

0.8262

We can write it as:

P

(

−

z

<

Z

<

z

)

=

0.8262

P

(

Z

<

−

z

)

+

P

(

Z

>

z

)

=

1

−

0.8262

2

P

(

Z

<

−

z

)

=

0.1738

(z-distribution is symmetric)

P

(

Z

<

−

z

)

=

0.0869

z

≈

−

1.36

Therefore, the area between

z

=

±

1.36

is

0.8