(a) Explanation Calculation: Satterthwaite’s formula: The degrees of freedom formula is, d . f . = ( s 1 2 n 1 + s 2 2 n 2 ) 2 1 n 1 − 1 ( s 1 2 n 1 ) 2 + 1 n 2 − 1 ( s 2 2 n 2 ) 2 In the formula, s 1 2 sample variance of population 1, s 2 2 is sample variance of population 2, n 1 is the sample size from population 1 and n 2 is the sample size from population 2 (b) To determine Compare the degrees of freedom of using Satterthwaite’s formula and using Problem 19 method.

Understandable Statistics: Concepts And Methods

12th Edition

ISBN: 9781337517508

Author: Charles Henry Brase, Corrinne Pellillo Brase

Publisher: Cengage Learning

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Question

Chapter 8.5, Problem 27P

(a)

To determine

Find the degrees of freedom for the student’s t distribution by using Satterthwaite’s formula.

(b)

To determine

Compare the degrees of freedom of using Satterthwaite’s formula and using Problem 19 method.

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Chapter 8.5, Problem 26P

Chapter 8.5, Problem 28P

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Chapter 8 Solutions

Understandable Statistics: Concepts And Methods

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Find the degrees of freedom for the student’s t distribution by using Satterthwaite’s formula.

Solution Summary: The author compares the degrees of freedom for the student's t distribution by using Satterthwaite’s formula.

Find the degrees of freedom for the student’s t distribution by using Satterthwaite’s formula.

Compare the degrees of freedom of using Satterthwaite’s formula and using Problem 19 method.

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Chapter 8 Solutions