Principles of Instrumental Analysis
Principles of Instrumental Analysis
7th Edition
ISBN: 9781305577213
Author: Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher: Cengage Learning
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Chapter A1, Problem A1.17QAP
Interpretation Introduction

(a)

Interpretation:

The presence of systematic error at the 95% confidence level is to be determined.

Concept introduction:

The confidence interval can be calculated using the following formula:

CI,μ=x¯±tsN

Here,

N = degree of freedom

μ = confidence interval

x¯ = mean

s = standard deviation

t = constant

Interpretation Introduction

(b)

Interpretation:

The presence of systematic error at the 95% confidence level is to be determined and if there is no availability of pooled value of s.

Concept introduction:

The confidence interval can be calculated using the following formula:

CI,μ=x¯±tsN

Here,

N = degree of freedom

μ = confidence interval

x¯ = mean

s = standard deviation

t = constant

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