Fundamentals of Biostatistics
8th Edition
ISBN: 9781305268920
Author: Bernard Rosner
Publisher: Cengage Learning
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Textbook Question
Chapter 8, Problem 1P
Find the lower 2.5th percentile of an F distribution with 14 and 7 df. What symbol is used to denote this?
Expert Solution & Answer
To determine
Find the lower 2.5th percentile of an F distribution.
Answer to Problem 1P
The lower 2.5th percentile of an F distribution is 0.296.
Explanation of Solution
The symbol is used to denote lower 2.5th percentile of an F distribution is,
Step-by-step procedure to obtain the lower 2.5th percentile of an F distribution using the MINITAB software:
- Choose Graph > Probability Distribution Plot choose View Probability> OK.
- From Distribution, choose F.
- Enter Numerator df as 14 and Denominator df as 7.
- Click the Shaded Area tab.
- Choose Probability Value and Left Tail for the region of the curve to shade.
- Enter the Probability Value as 0.025.
- Click OK.
Output using the MINITAB software is given below:
From the output, the lower 2.5th percentile of an F distribution is 0.296.
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Fundamentals of Biostatistics
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