The Index of Exposure to Radioactive Waste and the Cancer

question 4

Essay

The index of exposure to radioactive waste and the cancer mortality rates (deaths per 100,000)were recorded for nine different geographic regions.Explain what the R-squared in this regression means.
Dependent variable is: Cancer Mortality Rate
R-squared = 85.8%
s = 14.00993 with 9 - 2 = 7 degrees of freedom $$\begin{array} { l l l l l } \text { Variable } & \text { Coefficient } & \text { SE(Coeff) } & \text { t-ratio } & \text { P-value } \\\text { Constant } & 114.7156 & 8.045663 & 14.25807 & 0.00000198 \\\text { Index of Exp } & 9.231456 & 1.418787 & 6.506584 & 0.000332\end{array}$$

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Definitions:

Seminiferous Tubules

Narrow, coiled tubules within the testes where sperm production occurs.

Testes

The male reproductive glands that produce sperm and testosterone, located in the scrotum.

Spermatozoa

The male reproductive cells or sperm cells that are responsible for fertilizing an ovum.

Reproductive Systems

The organ systems in organisms that work together for the purpose of reproduction.