A Researcher Believes That the Median Annual Rainfall in the Valley

question 53

Multiple Choice

A researcher believes that the median annual rainfall in the valley is about $32.0$ inches. A randomly selected sample of 20 years had the following numbers of inches of rainfall in tl valley:
$$\begin{array} { l } 15.2,16.8,22.5,25.1,27.1,27.3,31.0,37.2,37.7,39.0,41.1,42.4,45.7,49.0,45 \\, 50.9,53.1,55.3,57.2,61.8\end{array}$$
Test the researcher's hypothesis at $\alpha = 0.05$ .
You may use the following abbreviated table of critical values for the sign test (two tailed $\alpha = 0.05$ ) , taken from Table $J$ in the text:
$\begin{array}{l}\begin{array}{l|cccccccc}\mathbf{n} & 11 & 12 & 13 & 14 & 15 & 16 & 17 & 18 \\\hline \text { critical value } & 1 & 2 & 2 & 3 & 3 & 3 & 4 & 4\end{array}\\\\\begin{array}{l|ccccccc}\mathbf{n} & \mathbf{1 9} & \mathbf{2 0} & \mathbf{2 1} & \mathbf{2 2} & \mathbf{2 3} & \mathbf{2 4} & \mathbf{2 5} \\\hline \text { critical value } & 4 & 5 & 5 & 5 & 6 & 6 & 6\end{array}\end{array}$

• A) Accept, because the test value 7 is greater than the critical value 4.
• B) Accept, because the test value 7 is greater than the critical value 5.
• C) Reject, because the test value 6 is greater than the critical value 4.
• D) Reject, because the test value 6 is greater than the critical value 5.

Identify the opportunities and legal implications of businesses acting on climate change.

Grasp the principles and importance of standing in legal suits, particularly related to environmental law.

Understand the federal government's strategies to reduce greenhouse gas emissions through transportation policies.

Recognize the implications of antitrust laws and practices on major technology companies.

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Definitions:

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