A range control chart $($R$-$chart$)$ was developed with LCLR $=0$ and UCLR $=2\mathrm{.}90.$

Similarly, an X$-$Bar chart was developed with LCLx$-$bar $=15$ and UCLx$-$bar $=24.$

Five $(5)$ additional samples of size $4$ were taken from a process. The means and ranges of the five samples are given in the table below. Is the process in control?

Range of each sample

Mean of each sample

$1\mathrm{.}75$

$29\mathrm{.}5$

$2\mathrm{.}42$

$22\mathrm{.}3$

$2\mathrm{.}75$

$17\mathrm{.}4$

$2\mathrm{.}04$

$20\mathrm{.}1$

$2\mathrm{.}80$

$18\mathrm{.}9$