One sample t-test, for testing population mean to a specified value $(\mu_0)$ is given by :
Answer & explanation
Correct answer: option 2
The correct answer is Option (2) → $t=\frac{\overline{x}-\mu_0}{S/\sqrt{n}}$
The test statistic for the one-sample,
$t=\frac{\overline{x}-\mu_0}{S/\sqrt{n}}$
where,
$\bar x$ = Sample mean
$\mu_0$ = Specified population mean
$s$ = Sample standard deviation
$n$ = Sample size