In a Sample of N = 40, a Sample Correlation

question 48

Multiple Choice

In a sample of n = 40, a sample correlation of r = .400 provides sufficient evidence to conclude that the population correlation coefficient exceeds zero in a right-tailed test at:

• A)α = .025 but not α = .05.
• B)α = .05 but not α = .025.
• C)both α = .025 and α = .05.
• D)neither α = .025 nor α = .05.

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Definitions:

Lower Quartile

The value below which 25% of the data falls, also known as the first quartile.

Weights

Values assigned to various elements in a computation to reflect their importance.

Police Officers

Members of law enforcement agencies who are empowered to enforce the law, protect property and the lives of citizens, and prevent crime and civil disorder.

Whiskers

In a box plot, lines that extend from the quartiles to the highest and lowest values, excluding outliers, to show the range of the data.