$9\mathrm{.}1.$ The data in Table $9$E$.1$ represent individual observations on molecular weight taken hourly from a chemical process.

Table $9$E$.1$ Molecular Weight

$\backslash$table$[[\backslash$table$[[$Observation$],[$Number$]],x,\backslash$table$[[$Observation$],[$Number$]],x,],[1,1,045,,11,1,139],[2,1,055,,12,1,169],[3,1,037,,13,1,151],[4,1,064,,14,1,128],[5,1,095,,15,1,238],[6,1,008,,16,1,125],[7,1,050,,17,1,163],[8,1,087,,18,1,188],[9,1,125,,19,1,146],[10,1,146,,20,1,167]]$

The target value of molecular weight is $1,050$ and the process standard deviation is thought to be about $=25.$

a$)$ Set up the Moving Average Control Chart with $w=6$ for the above data.

b$)$ Set up the EWMA Chart with $=0\mathrm{.}3,$ and $L=3$ for the above data.