Test Hypotheses About a Population Proportion
-A Recent Study Claimed $15 \%$

question 122

Short Answer

Test Hypotheses about a Population Proportion
-A recent study claimed that at least $15 \%$ of junior high students are overweight. In a sample of 160 students, 18 were found to be overweight. At $\alpha = 0.05$ , test the claim.

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Definitions:

Calcite

A common and widely distributed mineral consisting of calcium carbonate (CaCO3), important in the formation of limestone and marble.

Stalactite

A conical or cylindrical cave formation that hangs from the ceiling of a cave and is composed mostly of calcium carbonate.

Travertine

A variety of limestone that is commonly concentrically banded and porous.

Karst Topography

A landscape formed from the dissolution of soluble rocks such as limestone, characterized by sinkholes, caves, and underground drainage systems.