Based on the formula 
we can assume that the point estimate 
of the population mean 
will be at the centre of the confidence interval estimate.
Definitions:
Units
The basic quantity or measure of a product or service, often used as a basis for pricing or measurement.
Ending Inventory
The cumulative worth of all the goods a company holds at the close of a financial period.
Current Period
Refers to the present financial period under consideration or review, often in the context of accounting or reporting.
Budgeted Production
The anticipated volume of goods a company plans to produce in a certain period, based on demand forecasts and capacity planning.
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