Answered: Question: What test is used to compare…

Question: What test is used to compare two groups if the population standard deviation is unknown and the sample sizes are small? Choose the correct letter. A. t-test B. t-ratio C. F-test

Advanced Engineering Mathematics

10th Edition

ISBN:9780470458365

Author:Erwin Kreyszig

Publisher:Erwin Kreyszig

Chapter2: Second-order Linear Odes

Section: Chapter Questions

Problem 1RQ

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Question

Question: What test is used to compare two groups if the population standard deviation is unknown and the sample sizes are small?

Choose the correct letter.

A. t-test

B. t-ratio

C. F-test

Definition Definition Number of subjects or observations included in a study. A large sample size typically provides more reliable results and better representation of the population. As sample size and width of confidence interval are inversely related, if the sample size is increased, the width of the confidence interval decreases.

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