A Random Sample of 81 Students at a Local University

question 44

Short Answer

A random sample of 81 students at a local university showed that they work an average of 60 hours per month with a standard deviation of 18 hours. Compute a 95% confidence interval for the mean of the population.

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Definitions:

Eukarya

Eukarya refers to the domain consisting of all organisms whose cells have a nucleus, including protozoa, fungi, plants, and animals.

Fossil Record

A collection of fossils that documents the history of life on Earth through various geological periods.

Prokaryotes

Single-celled organisms without a nucleus, including bacteria and archaea, characterized by the absence of membrane-bound organelles.

Element

A substance consisting of atoms with the same number of protons in their nuclei, representing the simplest form of chemical substances.