A Researcher Is Interested in Testing the Hypothesis That Income

question 30

Short Answer

A researcher is interested in testing the hypothesis that income is negatively related to family size. A random sample of 10 families was selected from the population of a large mid-western city. All families were assessed on both their per-family income and their numbers of children $$\begin{array} { c c c } \text { Family } & \text { Per-family income } & \text { Number of children } \\\text { A } & \$ 190,000 & 2 \\\text { B } & \$ 30,000 & 6 \\\text { C } & \$ 19,000 & 7 \\\text { D } & \$ 40,000 & 3 \\\text { E } & \$ 23,000 & 6 \\\text { F } & \$ 40,000 & 4 \\\text { G } & \$ 25,000 & 5 \\\text { H } & \$ 40,000 & 3 \\\text { I } & \$ 28,000 & 1 \\\text { J } & \$ 30,000 & 5\end{array}$$ Since the income distribution was badly skewed, it was decided not to use the Pearson r.
-Should Ho be rejected or accepted? If Ho is rejected, state the level of significance.

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Definitions:

Intermittent Abdominal Pain

Periodic or sporadic pain in the belly area, which can vary in intensity and duration.

Dysuria

Painful urination resulting from bacterial infection of the bladder and obstructive conditions of the urethra.

Abdominal Assessment

A systematic examination of the abdomen to evaluate organs and detect abnormalities, involving inspection, auscultation, percussion, and palpation.

Possible Pregnancy

A state of being in which there is a chance that one might be pregnant, typically before it has been confirmed through testing.