In Developing an Interval Estimate for a Population Mean,a Sample

question 135

Multiple Choice

In developing an interval estimate for a population mean,a sample of 50 observations was used.The interval estimate was 19.76 ± 1.32.Had the sample size been 200 instead of 50,the interval estimate would have been:

• A)19.76 ± .33
• B)19.76 ± .66
• C)19.76 ± 5.28
• D)None of these choices.

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Definitions:

Permian Extinction

A prehistoric global event occurring about 252 million years ago, marking the boundary between the Permian and Triassic geological periods, characterized by the most significant extinction event in Earth's history where nearly 90% of marine species and 70% of terrestrial species died out.

Marsupials

Members of the mammal infraclass Marsupialia, characterized by birthing relatively undeveloped offspring that often complete their development in the maternal pouch.

Habitat Loss

The destruction, degradation, and fragmentation of natural environments, leading to a decline in biodiversity.

Physical Environment

The natural and physical surroundings in which organisms live, including land, water, atmosphere, and climate conditions.