UNDERSTANDING BASIC STAT LL BUND >A< F
UNDERSTANDING BASIC STAT LL BUND >A< F
7th Edition
ISBN: 9781337372763
Author: BRASE
Publisher: Cengage Learning
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Chapter 8.1, Problem 13P

Basic Computation: Sample Size Suppose x has a mound-shaped distribution with σ = 3 .

(a) Find the minimal sample size required so that for a 95 % confidence interval, the maximal margin of error is E = 0.4.

(b) Check Requirements Based on this sample size, can we assume that the x ¯ distribution is approximately normal? Explain.

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Chapter 8 Solutions

UNDERSTANDING BASIC STAT LL BUND >A< F

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