It Is Known That the Variance of a Population Equals

question 25

Essay

It is known that the variance of a population equals 484. A random sample of 81 observations is going to be taken from the population.
a.With a .80 probability, what statement can be made about the size of the margin of error?
b.With a .80 probability, how large of a sample would have to be taken to provide a margin of error of 3 or less?

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Definitions:

Genetic Inheritance

The process by which an offspring receives genes from its parents, explaining how traits or conditions are passed from one generation to the next.

Origin of Species

The scientific explanation of how different kinds of living organisms are believed to have developed, especially as popularized by Charles Darwin's work.

Homozygous

Refers to having two identical alleles for a particular gene.

Heterozygous

Having two different alleles of a particular gene, one inherited from each parent.