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:

$CI,\mu =\overline{x}\pm \frac{ts}{\sqrt{N}}$

Here,

N = degree of freedom

$\mu$ = confidence interval

$\overline{x}$ = 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:

$CI,\mu =\overline{x}\pm \frac{ts}{\sqrt{N}}$

Here,

N = degree of freedom

$\mu$ = confidence interval

$\overline{x}$ = mean

s = standard deviation

t = constant