A process that is considered to be in control measures an ingredient in ounces. Below are the last

$1$

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each of size n

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$=$

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$$taken$.$ The population process standard deviation is

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$3$

$6$

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Samples Item

$1$

$$Item

$2$

$$Item

$3$

$$Item

$4$

$$Item

$5$

$1$

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$9$

$1$

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$9$

$1$

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$9$

$9$

$1$

$2$

$1$

$1$

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$8$

$4$

$9$

$9$

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$1$

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$5$

$1$

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$9$

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$6$

$1$

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$7$

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$7$

$9$

$1$

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$1$

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$8$

$8$

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$1$

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$9$

$1$

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$8$

$9$

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$9$

$1$

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$1$

$0$

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$9$

$9$

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$$

a

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$$Standard deviation of the sampling means

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$=$

$$

$$

$$

enter your response here ounces

$$

$($

round your response to three decimal

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$$places

With z$=3,$ the control limits for the mean chart$$ are:

UCL$-$x$=$ ounces

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enter your response here ounces $($round your response to three decimal$$ places$).$