Homework Help is Here – Start Your Trial Now!
Math
Statistics
Assume that we have independent random samples of size n, and n, observations from normal populations with means 4 and u, and unequal variances. The sample variances S and s are used and the means are x and y. Which of the following formulae calculates the degree of freedom, v, for the Student's t statistic where variance is unknown and considered unequal? pIn A) V= : PIn B) 1= /m -1) - /(n -1) n,s -ns C) =- (n,-1)s -(n - 1)s (11-n-2)

Assume that we have independent random samples of size n, and n, observations from normal populations with means 4 and u, and unequal variances. The sample variances S and s are used and the means are x and y. Which of the following formulae calculates the degree of freedom, v, for the Student's t statistic where variance is unknown and considered unequal? pIn A) V= : PIn B) 1= /m -1) - /(n -1) n,s -ns C) =- (n,-1)s -(n - 1)s (11-n-2)

Algebra & Trigonometry with Analytic Geometry
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter10: Sequences, Series, And Probability
Section10.8: Probability
Problem 31E
See similar textbooks
icon
Related questions
Question
Assume that we have independent random samples of size n, and n observations from normal populations with means u and , and unequal variances. The sample variances s, and s are used and the means are x and y. Which of the following formulae calculates the degree of freedom, v, for the Student's t statistic where variance is unknown and considered unequal? A) 1 = P In B) = (n,-1) - (n-1) n s +n s C) 1 = (n-1)s -OL 1)s: 2)
Transcribed Image Text:Assume that we have independent random samples of size n, and n observations from normal populations with means u and , and unequal variances. The sample variances s, and s are used and the means are x and y. Which of the following formulae calculates the degree of freedom, v, for the Student's t statistic where variance is unknown and considered unequal? A) 1 = P In B) = (n,-1) - (n-1) n s +n s C) 1 = (n-1)s -OL 1)s: 2)
Expert Solution
steps

Step by step

Solved in 2 steps with 3 images

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Knowledge Booster
Point Estimation, Limit Theorems, Approximations, and Bounds
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, statistics and related others by exploring similar questions and additional content below.
Recommended textbooks for you
Algebra & Trigonometry with Analytic Geometry
Algebra & Trigonometry with Analytic Geometry
Algebra
ISBN:
9781133382119
Author:
Swokowski
Publisher:
Cengage
SEE MORE TEXTBOOKS