When Testing Whether the Correlation Coefficient Differs from Zero, the Value

question 78

Multiple Choice

When testing whether the correlation coefficient differs from zero, the value of the test statistic is t₂₀ = −2.95 with a corresponding p-value of 0.0061. At the 5% significance level, can you conclude that the correlation coefficient differs from zero?

• A) Yes, since the p-value is less than 0.05.
• B) Yes, since the absolute value of the test statistic exceeds 0.05.
• C) No, since the p-value is less than 0.05.
• D) No, since the absolute value of the test statistic exceeds 0.05.

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Definitions:

Temperament

Temperament refers to an individual's inherent personality traits, including mood, energy levels, and emotional reactivity, which are evident from early life and largely biologically based.

Irregular Sleeping

Patterns of sleep that are not consistent, such as varying bedtimes and wake times, leading to potential disruptions in sleep quality.

Slow-to-Warm-Up

Describes individuals, typically children, who are cautious and less active in new situations but become more comfortable over time.

Temperament

Inherent aspects of an individual's personality, such as mood, disposition, and reactivity, typically observed in infancy and thought to be biologically based.