When Finding a Confidence Interval for a Population Mean Based

question 37

Multiple Choice

When finding a confidence interval for a population mean based on a sample of size 8, which assumption is made?

• A) The population standard deviation,is known.
• B) The sampling distribution of z is normal.
• C) The sampled population is approximately normal.
• D) There is no special assumption made.
• E) None of these.

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Definitions:

Parasitism

A relationship between two species where one organism (the parasite) lives on or in another organism (the host), causing it harm but usually not immediate death.

Nourishment

The substances necessary for growth, health, and good condition, often referred to in the context of food and nutrition.

Species

A basic unit of biological classification, defined as a group of living organisms consisting of similar individuals capable of exchanging genes or interbreeding.

Protective Shells

Hard outer coverings that serve to shield organisms from environmental hazards and potential predators.