What Does a Negative T-Statistic Suggest

question 16

Multiple Choice

What does a negative t-statistic suggest?

• A) The stomach cancer mean was subtracted from the lung cancer mean.
• B) The lung cancer mean was subtracted from the stomach cancer mean.
• C) It is impossible to tell as SPSS randomly orders the numbers.
• D) None of the above.

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Definitions:

Covariance

A metric that quantifies the extent to which two variables change in correspondence with each other.

Correlation Coefficient

A statistical measure that indicates the extent to which two variables change together, showing how one variable's movement is related to another's.

Standard Deviation

A statistical measurement that illustrates how spread out the values of a data set are around the mean, indicating the variability or volatility.

Expected Returns

The anticipated average return of an investment over a certain period, taking into account both the probability and the impact of all possible outcomes.