Chapter A1, Problem A1.5QAP

Interpretation Introduction

Interpretation:

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-

$s_m=\frac{s}{\sqrt{N}}$ ........... (1)

Or,

$N={\left(\frac{s}{s_m}\right)}^2$

Here,

$s_m$ = standard error of the mean

$s$ = standard deviation

N = sample size or called as number of measurements.