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Construct an R Chart and Determine Whether the Process Variation  Control Chart Constants \text { Control Chart Constants }

Question 20

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Construct an R chart and determine whether the process variation is within statistical control.  Control Chart Constants \text { Control Chart Constants }
\quad \quad \quad \quad \quad xˉ \bar{x} \quad \quad \quad \quad \quad \quad s \boldsymbol{s} \quad \quad \quad \quad \quad \quad R \boldsymbol{R}
nA2A3B3B4D3D421.8802.6590.0003.2670.0003.26731.0231.9540.0002.5680.0002.57440.7291.6280.0002.2660.0002.28250.5771.4270.0002.0890.0002.11460.4831.2870.0301.9700.0002.00470.4191.1820.1181.8820.0761.92480.3731.0990.1851.8150.1361.86490.3371.0320.2391.7610.1841.816100.3080.9750.2841.7160.2231.777\begin{array}{ccccccc}\hline n & A_{2} & A_{3} & B_{3} & B_{4} & D_{3} & D_{4} \\\hline 2 & 1.880 & 2.659 & 0.000 & 3.267 & 0.000 & 3.267 \\3 & 1.023 & 1.954 & 0.000 & 2.568 & 0.000 & 2.574 \\4 & 0.729 & 1.628 & 0.000 & 2.266 & 0.000 & 2.282 \\5 & 0.577 & 1.427 & 0.000 & 2.089 & 0.000 & 2.114 \\6 & 0.483 & 1.287 & 0.030 & 1.970 & 0.000 & 2.004 \\7 & 0.419 & 1.182 & 0.118 & 1.882 & 0.076 & 1.924 \\8 & 0.373 & 1.099 & 0.185 & 1.815 & 0.136 & 1.864 \\9 & 0.337 & 1.032 & 0.239 & 1.761 & 0.184 & 1.816 \\10 & 0.308 & 0.975 & 0.284 & 1.716 & 0.223 & 1.777 \\\hline\end{array}
A machine that is supposed to fill small bottles to contain 20 milliliters yields the following data from a test of 4 bottles every hour.
\quad \quad \quad \quad \quad  Bottle Volume (mL) \text { Bottle Volume (mL) }
 Sample xˉ Range 119.920.120.220.320.1250.4220.420.020.320.320.2500.4320.020.720.420.320.3500.7420.420.120.119.920.1250.5519.919.819.619.519.7000.4619.419.419.619.719.5250.3719.819.419.619.719.6250.4819.919.820.020.019.9250.2920.220.320.120.320.2250.21020.020.320.020.220.1250.31120.320.520.120.220.2750.41220.119.919.819.719.8750.41319.519.819.719.619.6500.31419.419.819.819.419.4000.41519.519.619.619.919.6500.4\begin{array}{c|cccc|c|c}\text { Sample } & &&&& \bar{x} & \text { Range }\\\hline 1 & 19.9 & 20.1 & 20.2 & 20.3 & 20.125 & 0.4 \\2 & 20.4 & 20.0 & 20.3 & 20.3 & 20.250 & 0.4 \\3 & 20.0 & 20.7 & 20.4 & 20.3 & 20.350 & 0.7 \\4 & 20.4 & 20.1 & 20.1 & 19.9 & 20.125 & 0.5 \\5 & 19.9 & 19.8 & 19.6 & 19.5 & 19.700 & 0.4 \\6 & 19.4 & 19.4 & 19.6 & 19.7 & 19.525 & 0.3 \\7 & 19.8 & 19.4 & 19.6 & 19.7 & 19.625 & 0.4 \\8 & 19.9 & 19.8 & 20.0 & 20.0 & 19.925 & 0.2 \\9 & 20.2 & 20.3 & 20.1 & 20.3 & 20.225 & 0.2 \\10 & 20.0 & 20.3 & 20.0 & 20.2 & 20.125 & 0.3 \\11 & 20.3 & 20.5 & 20.1 & 20.2 & 20.275 & 0.4 \\12 & 20.1 & 19.9 & 19.8 & 19.7 & 19.875 & 0.4 \\13 & 19.5 & 19.8 & 19.7 & 19.6 & 19.650 & 0.3 \\14 & 19.4 & 19.8 & 19.8 & 19.4 & 19.400 & 0.4 \\15 & 19.5 & 19.6 & 19.6 & 19.9 & 19.650 & 0.4\end{array}

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