Explanation Given: P ( Z > z ) = .9678 Approach: As P ( Z > z ) signifies the shaded area under the curve is towards the right side of the curve. In table 2 , appendix D all the shaded areas is towards the left side of the curve. Thus, it is not possible to find out the value of z directly. As the area of the region to the right side of z is same as the area of the region to the left side of − z . Therefore, P ( Z > z ) = P ( Z < − z ) The values of − z if z satisfies P ( Z < − z ) = To determine (b). The values of z if z satisfies P ( − z < Z < z ) = .8354 .

Finite Mathematics for the Managerial, Life, and Social Sciences-Custom Edition

11th Edition

ISBN: 9781305283831

Author: Tan

Publisher: Cengage Learning

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Chapter 8.5, Problem 16E

To determine

(a).

The values of z if z satisfies P(Z>z)=.9678.

To determine

(b).

The values of z if z satisfies P(−z<Z<z)=.8354.

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Chapter 8.5, Problem 15E

Chapter 8.5, Problem 17E

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Finite Mathematics for the Managerial, Life, and Social Sciences-Custom Edition

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