You are given the following null and alternative hypotheses: 
If the true population mean is 4,345,calculate the power of the test.Assume the population standard deviation is known to be 200 and the sample size is 100.
Definitions:
Period Cost
Expenses that are not directly tied to production activity and are expensed in the period in which they are incurred.
Variable Costing
A technique in accounting that encompasses only costs that vary with production (including direct materials, direct labor, and variable manufacturing overhead) in the pricing of products.
Period Cost
Expenses that are not directly tied to the production of goods and are instead associated with time periods, such as administrative salaries.
Variable Costing
A method of cost accounting where only variable production costs are included in product costs, with fixed overhead expenses treated as period costs.
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