Chapter 9.1, Problem 1LC

BuyFind*arrow_forward*

8th Edition

Frederick J Gravetter + 1 other

ISBN: 9781133956570

Textbook Problem

Under what circumstances is a *t* statistic used instead of a z-score for a hypothesis test?

To determine

The circumstances when *t*-statistic is used instead of *z*-score for a hypothesis test.

Explanation

According to the conditions of *t*-test, the *t-* test is used when

- The sample size is small which is less than 30.
- The population standard deviation is not known...

Probability and Statistics for Engineering and the Sciences

Understanding Basic Statistics

Essentials Of Statistics

Statistics for The Behavioral Sciences (MindTap Course List)

Essentials of Statistics for The Behavioral Sciences (MindTap Course List)

Mathematical Excursions (MindTap Course List)

Elementary Geometry For College Students, 7e

Elements Of Modern Algebra

Calculus: Early Transcendental Functions

Contemporary Mathematics for Business & Consumers

Single Variable Calculus

Calculus of a Single Variable

Calculus: An Applied Approach (MindTap Course List)

Single Variable Calculus: Early Transcendentals

Finite Mathematics and Applied Calculus (MindTap Course List)

Multivariable Calculus

Finite Mathematics for the Managerial, Life, and Social Sciences

Applied Calculus

Calculus: Early Transcendental Functions (MindTap Course List)

Elementary Technical Mathematics

Applied Calculus for the Managerial, Life, and Social Sciences: A Brief Approach

Mathematical Applications for the Management, Life, and Social Sciences

Single Variable Calculus: Early Transcendentals, Volume I

Calculus: Early Transcendentals

Finite Mathematics

Intermediate Algebra

Calculus (MindTap Course List)

Precalculus: Mathematics for Calculus (Standalone Book)

Trigonometry (MindTap Course List)

Introduction To Statistics And Data Analysis

Study Guide for Stewart's Multivariable Calculus, 8th

Elementary Geometry for College Students

Study Guide for Stewart's Single Variable Calculus: Early Transcendentals, 8th