Table 20-7
Distribution of Income in Imagination -Refer to Table 20-7

question 74

Short Answer

Table 20-7
Distribution of Income in Imagination
$$\begin{array} { | l | l | l | } \hline \text { Number of Families } & \text { Income Range } & \text { Average Income } \\\hline 23,500 & \text { less than } \$ 18,000 & \$ 15,890 \\\hline 42,410 & \text { between } \$ 18,000 \text { and } \$ 36,000 & \$ 27,450 \\\hline 57,330 & \text { between } \$ 36,000 \text { and } \$ 54,000 & \$ 46,220 \\\hline 63,490 & \text { between } \$ 54,000 \text { and } \$ 72,000 & \$ 65,000 \\\hline 24,770 & \text { between } \$ 72,000 \text { and } \$ 90,000 & \$ 80,790 \\\hline 23,500 & \text { more than } \$ 90,000 & \$ 118,750 \\\hline\end{array}$$
-Refer to Table 20-7. If the poverty rate in Imagination is 10%, what is the poverty line?

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Definitions:

Population Correlation

A measure of the strength and direction of association that exists between two variables measured across an entire population.

Alternative

In hypothesis testing, this refers to the hypothesis that contradicts the null hypothesis, suggesting some effect or difference exists.

Null Hypothesis

In statistical testing, it is the assertion that there is no effect or no difference, used as a default hypothesis to challenge with experimental evidence.

Confidence Interval

An estimated range of values derived from sample data that is likely to contain the value of an unknown population parameter, expressed at a specified level of confidence.