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Suppose Z has a standard normal distribution with a mean of 0 and standard deviation of 1.So,50% of the possible Z values are between and (symmetrically distributed about the mean).
Shortage Costs
Expenses incurred when demand exceeds supply, often leading to lost sales or higher production costs.
Weighted Average Delay
The average delay time for all items being processed, taking into account the proportion that each item contributes to the total amount.
Collection Delay
The time lag between when a payment is made by a customer and when the funds become available to the recipient company.
Average Amount
The mean value obtained by dividing the sum of all amounts by the number of amounts, often used to determine the typical value in a set of data.
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