When Establishing the Confidence Interval for the Average Weight of a Cereal

question 104

Multiple Choice

When establishing the confidence interval for the average weight of a cereal box,assume that the population standard deviation is known to be 2 ounces.Based on a sample,the average weight of a sample of 20 boxes is 16 ounces.The appropriate test statistic to use is ________.

• A) t
• B) z
• C) χ
• D) p

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Definitions:

Hemp Nettles

Plants belonging to the genus Galeopsis within the family Lamiaceae, characterized by their square stems, opposite leaves, and ability to thrive in disturbed soils.

Allopatric Speciation

Speciation that occurs when one population becomes geographically separated from the rest of the species and subsequently evolves. Compare with sympatric speciation.

Geographic Isolation

A form of evolutionary separation where populations of the same species become physically divided by geographical barriers leading to genetic divergence.

Adaptive Radiation

The evolution of a large number of related species from an unspecialized ancestral organism.