Unscientific Polls Are Appropriately Used to

question 5

Multiple Choice

Unscientific polls are appropriately used to

• A) ​identify populations for scientific research.
• B) ​gain reader interest and engagement.
• C) provide an accurate picture of public opinion.
• D) select presidential candidates.

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Definitions:

Confidence Interval

A span of numbers obtained from sample observations, expected to encompass the value of an unseen population characteristic.

Null Hypothesis

A statement or hypothesis that indicates no statistical significance or effect, essentially asserting that any observed differences are due to chance.

Alpha Level

Alpha level, often denoted as α, is a threshold value used in statistics to determine the significance of a result, especially in hypothesis testing; it represents the probability of erroneously rejecting the null hypothesis.

Rejection Region

In hypothesis testing, the range of values for which the null hypothesis is not considered plausible and is therefore rejected.