Examlex

Solved

A Previous Study of Nickels Showed That the The Standard

question 60

Multiple Choice

A previous study of nickels showed that the the standard deviation of the weight of nickels is 150 milligrams. A coin counter manufacturer wishes to find the 99% confidence interval for the average
Weight of a nickel. How many nickels does he need to weigh to be accurate within 15 milligrams?


Definitions:

Anatomically Modern Humans

Homo sapiens characterized by skeletal features that are similar to those of humans living today.

Recent African Origins Hypothesis

An evolutionary theory suggesting that modern humans evolved in Africa relatively recently and share a common ancestry.

Eve Hypothesis

A scientific theory suggesting that all modern humans have descended from a common maternal ancestor, dubbed "Mitochondrial Eve," who lived in Africa.

Out of Africa Hypothesis

A scientific theory proposing that all modern humans originated from a common ancestry in Africa before migrating to other parts of the world.

Related Questions