A Grocery Store Has an Average Sales of $8000 Per

question 16

Multiple Choice

A grocery store has an average sales of $8000 per day. The store introduced several advertising campaigns in order to increase sales. To determine whether or not the advertising campaigns have been effective in increasing sales, a sample of 100 days of sales was selected. It was found that the average was $8200 per day. From past information, it is known that the standard deviation of the population is $1500. The value of the test statistic is

• A) .013.
• B) .133.
• C) 13.33.
• D) 1.33.

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Definitions:

Schizotypal Personality Disorder

A psychiatric condition defined by significant social fear, disorganized thinking, paranoia, feelings of unreality, short-term psychotic episodes, and frequently non-traditional beliefs.

Magical Thinking

The belief that one’s thoughts, words, or actions can influence the course of events in the material world in a way that defies the laws of physics or logic.

Paranoia

A mental condition characterized by delusions of persecution, unwarranted jealousy, or exaggerated self-importance, typically elaborated into an organized system.

Avoidant Personality Disorder

A mental health condition marked by feelings of extreme social inhibition, inadequacy, and sensitivity to negative evaluation.