$$e$)$ Using the Critical Ratio$($CR$)$ scheduling rule for sequencing the$$ jobs, the order$$ is:

Part $30$Part $31$Part $32$

Sequence

Job

$1$

D

$2$

C

$3$

A

$4$

B

Part $33$

The average tardiness$($job lateness$)$ for the sequence developed using the CR rule$=$

$$

enter your response here days $($round your response to two decimal$$ places$).$

$.$

$.$

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Question content area right

Part $1$

An Alabama lumberyard has four jobs on$$ order, as shown in the following table. Today is day $205$ on the$$ yard's schedule. In what sequence would the jobs be ranked according to the decision rules on the$$ left:

$$

Job

Due Date

Duration$($days$)$

Upper A

$212$

$6$

Upper B

$209$

$3$

Upper C

$208$

$3$

Upper D

$210$

$8$

All dates are specified as manufacturing planning calendar days. Assume that all jobs arrive on day $205.$ Compute all times based on initiating work on day $205.$