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Chapter 2: Q. 2.5 (page 119)

Use Table A to find the value zfrom the standard Normal distribution that satisfies each of the following conditions. In each case, sketch a standard Normal curve with your value of zmarked on the axis.

5. 45%of all observations are greater than z.

Short Answer

Expert verified

The value of zis 0.13.And the standard Normal curve is,

Step by step solution

01

Given Information 

Given that, 45%of all observations are greater than z,

The value ofz=?

02

Explanation 

Using standard normal (z)table,

P(Z>z)=45%1-P(Z<z)=0.45P(Z<z)=1-0.45P(Z<z)=0.55P(Z<0.13)=0.55z=0.13

The graphical representation is,

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