In a Research Study,20% of the Highest Scoring Performers on the SAT

question 98

Multiple Choice

In a research study,20% of the highest scoring performers on the SAT were left-handed.This suggests

• A) that fewer left-handers perform as well as would be expected based on percentages.
• B) that the SAT measures visual-spatial ability.
• C) that more left-handers perform as well as would be expected based on percentages.
• D) that the SAT measures fine motor skills.

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Definitions:

P-value

The chance of witnessing outcomes in a test that are as or more extreme than what was actually seen, assuming that the null hypothesis is true.

Significance Level

A threshold set by researchers in hypothesis testing that determines the probability of rejecting a true null hypothesis, often denoted by alpha (α).

Rejection Region

The region in the sampling distribution of a statistic that leads to the rejection of the null hypothesis.

Test Statistic

A value calculated from sample data during a hypothesis test, used to decide whether to reject the null hypothesis.