Question: A packaging process has a problem of producing underweighted packages. A package is considered to be underweighted if its weight is below 20 ounces. To

A packaging process has a problem of producing underweighted packages. A package is considered to be underweighted if its weight is below 20 ounces. To inspect the weights, the quality inspector randomly selects 4 packages as a batch and then weighs each package. The data from the inspection is shown below.

Weight
Package 1 Package 2 Package 3 Package 4
Batch 1 23 22 14 18
Batch 2 24 18 25 14
Batch 3 24 24 26 24
Batch 4 18 20.5 24 10
Batch 5 20 18 21 26

The inspector constructs a control chart for monitoring the number of underweighted packages per batch. Calculate Upper Control Limit (UCL) of the chart for the confidence level 98%.

Note: Round only your final answer to 2 decimal places.

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