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Essentials of Statistics for the B...

8th Edition
Frederick J Gravetter + 1 other
ISBN: 9781133956570

Solutions

Chapter
Section
BuyFindarrow_forward

Essentials of Statistics for the B...

8th Edition
Frederick J Gravetter + 1 other
ISBN: 9781133956570
Textbook Problem

Draw a vertical line through a normal distribution for each of the following z-score locations. Determine whether the tail is on the right or left side of the line and find the proportion in the body.

  • a. z = 2.50
  • b. z = 0.80
  • c. z= −0.50
  • d. z = −0.77

a.

To determine

To Find: The proportion in body when p(z=2.5)

Explanation

Given Info:

Proportion in body follows a normal distribution with z-score equal to 2.5.

Calculation:

Since, Z represents the standard normal variate. So, probability that z score is equal to 2.5 is obtained by z-table...

b.

To determine

To Find: The proportion in the bodywhen p(z=0.8)

c.

To determine

To Find: The proportion in the body when p(z=0.5)

d.

To determine

To Find: The proportion in the body when p(z=0.77)

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