# The value of standard deviation to the instrumental technique is 1.0%.The number of replicate measurements is to be determined when the standard error of mean is 0.01%. Concept introduction: The following formula will be used for the calculation of the standard error- s m = s N ........... (1) Or, N = ( s s m ) 2 Here, s m = standard error of the mean s = standard deviation N = sample size or called as number of measurements.

### Principles of Instrumental Analysis

7th Edition
Douglas A. Skoog + 2 others
Publisher: Cengage Learning
ISBN: 9781305577213

### Principles of Instrumental Analysis

7th Edition
Douglas A. Skoog + 2 others
Publisher: Cengage Learning
ISBN: 9781305577213

#### Solutions

Chapter A1, Problem A1.5QAP
Interpretation Introduction

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