The Index of Exposure to Radioactive Waste and the Cancer

question 57

Multiple Choice

The index of exposure to radioactive waste and the cancer mortality rates (deaths per 100,000) were recorded for nine different geographic regions.Use the regression analysis and summary statistics provided below to determine a 95% confidence interval for the average cancer mortality rate of a county whose index of exposure is 6.81 $$\begin{array} { l c l l c } \text { Variable } & \text { Count } & \text { Mean } & \text { StdDev } & \text { Range } \\\text { Index of Exp } & 9 & 4.617778 & 1.163731 & 10.39 \\\text { Cancer Mortality Rate } & 9 & 157.3444 & 11.59712 & 96.8\end{array}$$ Dependent variable is: Cancer Mortality Rate R-squared = 85.8%
S = 14.00993 with 9 - 2 = 7 degrees of freedom $$\begin{array} { l l l l l } \text { Variable } & \text { Coefficient } & \text { SE(Coeff) } & \text { t-ratio } & \text { P-value } \\\text { Constant } & 114.7156 & 8.045663 & 14.25807 & 0.00000198 \\\text { Index of Exp } & 9.231456 & 1.418787 & 6.506584 & 0.000332\end{array}$$

• A)164.3 to 190.9 deaths per 100,000
• B)143.4 to 211.8 deaths per 100,000
• C)174.2 to 180.9 deaths per 100,000
• D)167.9 to 185.9 deaths per 100,000
• E)141.8 to 213.3 deaths per 100,000

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Definitions:

Consumption Spending

Expenditures by households on goods and services, excluding purchases of new housing.

Income

The money received, especially on a regular basis, for work or through investments.

Investment Accelerator

An economic theory suggesting that an increase in national or private investment spending stimulates overall economic growth, potentially leading to further increases in investment.

Investment

The act of allocating resources, usually money, with the expectation of generating an income or profit.