Students of a Large University Spend an Average of $5

question 25

Short Answer

Students of a large university spend an average of $5 a day on lunch. The standard deviation of the expenditure is $3. A simple random sample of 36 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 the sample mean will be at least $4?
c.What is the probability that the sample mean will be at least $5.90?

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Definitions:

Mesostructures

Intermediate-scale structures or frameworks that exist between the macro and micro levels, such as community organizations or networks.

Microstructures

The small-scale, intricate social, physical, or biological arrangements and patterns that make up a larger system or society.

Sociological Imagination

The ability to see the relationship between individual experiences and larger social influences.

Scientific Revolution

The period of significant advancements in science during the 16th and 17th centuries, which transformed views on society and nature.