THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION

question 3

Multiple Choice

THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION:
A supermarket chain has 25 stores in the North,30 in the South,50 in the Midwest,and 35 in the West.Using a proportional allocation of a random sample of 30% of the outlets,the manager records the following means and standard deviations.

-Find a 95% confidence interval for the total sales.

• A)19976.60 ± 450.85
• B)19976.60 ± 284.21
• C)19976.60 ± 729.90
• D)19976.60 ± 605.83

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Definitions:

Subtypes

Specific categories within a broader classification, characterized by their unique features or attributes.

Anhedonia

A condition in which the ability to experience pleasure from activities usually found enjoyable is lost.

Depression

A psychiatric condition characterized by an ongoing low mood or a decrease in pleasure in tasks, severely affecting life on a day-to-day basis.

Anxiety

A feeling of worry, nervousness, or unease about something with an uncertain outcome, often accompanied by physical symptoms.