THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION: 
= 32.5 sd = 8.1 and n = 15
-Calculate the margin of error for a 90% confidence interval using the given data:
Definitions:
Predetermined Overhead Rate
An estimated rate used to allocate manufacturing overhead costs to individual units of production, based on a chosen activity base.
Direct Labor-Hours
The total hours worked by employees who are directly involved in the production process, used as a basis for assigning labor costs to products.
Machine-Hours
A measure of production time, quantified in hours, that machinery is operating to perform work.
Machining Department
A specialized division within a manufacturing operation that performs machining processes, such as cutting, shaping, or drilling materials.
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