The Z-Distribution Is Used to Estimate a Population Mean for Large

question 18

Multiple Choice

The z-distribution is used to estimate a population mean for large samples if the population standard deviation is known."Large" is usually defined as _______.

• A)at least 10
• B)at least 5% of the population size
• C)at least 30
• D)at least 12
• E)at least 100

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Definitions:

Natural Selection

The process by which organisms better adapted to their environment tend to survive and produce more offspring, a key mechanism of evolution.

Galápagos Islands

The Galápagos Islands are an archipelago of volcanic islands located in the Pacific Ocean, renowned for their unique and diverse ecosystems which played a significant role in the development of Charles Darwin's theory of natural selection.

Disruptive Selection

Outcome of natural selection in which the two extreme phenotypes are favored over the average phenotype, leading to more than one distinct form.

Directional Selection

Outcome of natural selection in which an extreme phenotype is favored, usually in a changing environment.