Pure-Bred Dogs Competing in Shows Must Often Meet Specific Height

question 52

Short Answer

Pure-bred dogs competing in shows must often meet specific height criteria to be considered to be within the breed standard. A new breed of dog, the pug-cock-a-poo, has been approved by a kennel club. The variance of pug-cock-a-poo height is known to be 2.25 inches squared. You would like to estimate the mean height of all pug-cock-a-poo breeds of dogs.
A) Find the appropriate sample size to achieve a margin of error of 0.3 when maintaining a 90% level of confidence.
B) Find the appropriate sample size to achieve a margin of error of 0.3 when maintaining a 95% level of confidence.

• A) Find the appropriate sample size to achieve a margin of error of 0.3 when maintaining a 90% level of confidence.
• B) Find the appropriate sample size to achieve a margin of error of 0.3 when maintaining a 95% level of confidence.

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Definitions:

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A specific variant of the Simian Immunodeficiency Virus, which is a non-human primate virus closely related to the Human Immunodeficiency Virus (HIV).

Gene Trees

Diagrams that show the inferred evolutionary relationships among various genes derived from different species.

Coalescence Times

A concept in molecular evolution and population genetics referring to the point in time where genetic variants shared among individuals can be traced back to a common ancestor.

Ancestral Allele

The genetic variant of a gene that is believed to have existed in the common ancestor of a species or group of species.