A Population of 1,000 Students Spends an Average of $10

question 51

Short Answer

A population of 1,000 students spends an average of $10.50 a day on dinner. The standard deviation of the expenditure is $3. A simple random sample of 64 students is taken.
a.What are the expected value, standard deviation, and shape of the sampling distribution of the sample mean?
b.What is the probability that these 64 students will spend a combined total of more than $715.21?
c.What is the probability that these 64 students will spend a combined total between $703.59 and $728.45?

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Definitions:

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A region of the brain involved in functions such as decision making, emotion, and the regulation of autonomic nervous system operations.

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A psychological disorder marked by a disruption and inconsistency among one's thoughts, memories, environment, behaviors, and sense of self.

Dr. Jekyll

A character from Robert Louis Stevenson's novella, representing the good side of a person's dual nature.