Moving average Chart of percent lime concentration.
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Twenty-four hourly readings of the percent lime concentration are shown below
Hour %CaO Hour %CaO
1 0.19 13 0.16
2 0.13 14 0.15
3 0.11 15 0.20
4 0.19 16 0.16
5 0.16 17 0.14
6 0.17 18 0.16
7 0.13 19 0.14
8 0.17 20 0.10
9 0.10 21 0.13
10 01.4 22 0.20
11 0.17 23 0.26
12 0.14 24 0.16
a) Use these 24 values to construct a two-period Moving Average Chart.
b) The next 12 hourly readings for percent lime are:
0.01 0.18 0.18 0.20 0.11 0.30 0.21 0.11 0.17 0.18 0.13 0.28
Plot these values on the continuation of the Moving Average Chart.
c) What does the Moving Average Chart reveal about this process?
d) Is the Moving Range Chart a useful addition to the Moving Average Chart?
e) Which chart is easier to use for these periodic data, the XmR Chart or the Moving Average Chart?
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Solution Summary
Moving Average Chart of 24 hourly readings of the percent lime concentration is plotted.
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