Consider a Study Testing Whether Birds Were Equally Likely to Rest

question 10

Multiple Choice

Consider a study testing whether birds were equally likely to rest on each streetlight. Researchers surveyed 30 randomly chosen streetlights in a city known to have many birds and counted the number of birds resting on each streetlight. Data on the number of birds seen on the lights are shown. (Note: No lights had more than three birds.) What is the ?² value we would obtain for a goodness-of-fit test comparing these data to the expectations from a Poisson process?
?
$\begin{array}{|cc|}\hline \begin{array}{l}\text { Number } \\\underline {\text { birds }}\end{array} & \begin{array}{l}\text { Number } \\\underline {\text { of lights }}\end{array} \\0 & 3 \\1 & 12 \\2 & 9 \\\geq 3 & 6 \\\hline\end{array}$

• A) 2.33
• B) 4.33
• C) 6.33
• D) 8.33

Understand the concepts of experimental design and its types.

Recognize ethical considerations in research, including plagiarism.

Understand the role and process of pilot studies and observational methods in research.

Understand the structure and purposes of different types of reports.

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Definitions:

Bearer Instrument

A financial document that entitles the holder to receive the assets or value stated on the document, with no need to prove ownership.

Stole

The past tense of steal, referring to the act of taking something without permission with the intent to permanently keep it.

Good Faith

Acting with honesty and sincerity without any intent to defraud or seek an unfair advantage.

Defective

Describing a product or good that fails to meet quality standards or does not function as intended.