An Analyst Is Assigned a Blind Quality Control Sample of Blood

question 28

Multiple Choice

An analyst is assigned a blind quality control sample of blood containing a drug metabolite. He tests ten separate portions and obtains the following data for the concentration in ug/mL:
25.2
24.8
26.6
27.0
24.0
26.0
25.5
26.3
24.9
23.9
The accepted true value of this sample is 24.7 ug/mL. What is the absolute error between the mean obtained by the analyst and the accepted true value? Report to two significant figures

• A) -1.30
• B) 0.72
• C) 0.93
• D) -0.99
• E) 1.01
• F) -0.77

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Definitions:

Selling and Administrative Expenses

These are indirect costs that are not directly tied to the production of goods or services, including sales personnel salaries, advertising, and office rent.

Period Costs

Costs that are not directly tied to the production process and are expensed in the period they are incurred, such as selling, general, and administrative expenses.

Administrative Costs

Expenses related to the general administration of a business, including salaries of executives, office supplies, and legal and accounting services.

Indirect Costs

Costs that cannot be directly linked to the production or sale of specific goods or services, like utilities or administrative salaries.