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ChemistryPrinciples of Instrumental Analysis(a) Interpretation: The absolute and the relative uncertainty is to be determined for the measurement involving 600 count at 90% confidence level. Concept introduction: The standard deviation can be calculated as follows: σ M = M Also, the relative standard deviation can be calculated as follows: σ R = σ M M σ R = M M The absolute uncertainty = z σ M The relative uncertainty = z σ R The formula for the confidence of counting intervals is − R = R ± z σ RStart your trial now! First week only $4.99!*arrow_forward*

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7th Edition

Douglas A. Skoog + 2 others

Publisher: Cengage Learning

ISBN: 9781305577213

Chapter 32, Problem 32.6QAP

Interpretation Introduction

**(a)**

**Interpretation:**

The absolute and the relative uncertainty is to be determined for the measurement involving 600 count at 90% confidence level.

**Concept introduction:**

The standard deviation can be calculated as follows:

Also, the relative standard deviation can be calculated as follows:

The absolute uncertainty =

The relative uncertainty =

The formula for the confidence of counting intervals is −

Interpretation Introduction

**(b)**

**Interpretation:**

The absolute and the relative uncertainty is to be determined for the measurement involving 600 count at 95% confidence level.

**Concept introduction:**

The standard deviation can be calculated as follows:

Also, the relative standard deviation can be calculated as follows:

The absolute uncertainty =

The relative uncertainty =

The formula for the confidence of counting intervals is −

Interpretation Introduction

**(c)**

**Interpretation:**

The absolute and the relative uncertainty is to be determined for the measurement involving 600 count at 99% confidence level.

**Concept introduction:**

The standard deviation can be calculated as follows:

Also, the relative standard deviation can be calculated as follows:

The absolute uncertainty =

The relative uncertainty =

The formula for the confidence of counting intervals is −