Assignment:
A process that is considered to be in control measures an ingredient in ounces. Below are the last 10 samples (each of size n = 5) taken. The population process standard deviation is 1.64
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Samples
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1
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2
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3
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4
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5
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6
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7
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8
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9
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10
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|
9
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11
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13
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11
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13
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9
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9
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13
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8
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10
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|
10
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9
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8
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10
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9
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9
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11
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15
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7
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11
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10
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11
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11
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11
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10
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9
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9
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7
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13
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10
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|
9
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11
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11
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10
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11
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11
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9
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10
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13
|
9
|
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11
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11
|
9
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11
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10
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8
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8
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7
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8
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11
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A) Standard deviation of the sampling means =__________ ounces(round your response to three decimal? places).
B) With z = 3, the control limits for the mean chart? are:
UCLx = ____________ounces
LCLx= _______________ounces
C) The control limits for the R-chart are:
UCLR= __________ ounces
LCLR= __________ ounces
D) Based on the x-chart, is one or more samples beyond the control limits?
Based on the R-chart, is one or more samples beyond the control limits?