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:

FAT32

A file system that supports hard drives up to 2 TB in size.

SATA

Serial ATA, an interface used to connect ATA hard drives to a computer's motherboard, offering improvements over the older Parallel ATA (PATA) standard, including faster data transfer rates.

PATA

Parallel ATA, an earlier standard for connecting storage devices like hard drives and optical drives to a computer's motherboard.

Dedicated Link

A communication pathway reserved exclusively for two endpoints, typically providing constant bandwidth and lower latency.