A Researcher Wishes to Find Out Whether There Is a Dependable

question 20

Short Answer

A researcher wishes to find out whether there is a dependable relationship between the severity of earthquakes and temperature for the 7 days immediately preceding the quake. A sample of 10 measured earthquakes was randomly selected from those recorded since 1965. For each area both the Richter value (higher value meaning more severe quakes) and the mean temperature for the 7 days preceding the quakes were recorded. The data follow: $$\begin{array} { l c l } \text { Area } & \text { Richter Scale Value } & \text { Mean Temperature } \\\text { A } & 8.0 & 65 \\\text { B } & 7.0 & 67 \\\text { C } & 4.9 & 70 \\\text { D } & 6.5 & 66 \\\text { E } & 5.0 & 65 \\\text { F } & 5.5 & 60 \\\text { G } & 5.0 & 63 \\\text { H } & 4.5 & 64 \\\text { I } & 5.0 & 65 \\\text { J } & 2.0 & 65\end{array}$$ Neither distribution appears to be skewed.
-On the basis of your statistical decision, which error, Type 1 or Type 2 might you have committed?

---

Definitions:

Structural Mobility

Changes in the economic and social positions of groups within a society due to changes in the society's economy, technology, or structure rather than individual efforts.

Caste Systems

Social stratification systems based on heredity, in which people are placed at birth into unequal groups with specific roles, rights, and duties, prominent in certain cultures.

Apartheid

The system of institutionalized racial segregation and discrimination that existed in South Africa from 1948 until the early 1990s.

Jim Crow Laws

Racial segregation laws enacted in the late 19th and early 20th centuries in the Southern United States, which enforced racial segregation and disenfranchised African Americans.