Choose the Statement That Is True About the Level of Significance

question 8

Multiple Choice

Choose the statement that is true about the level of significance when performing several hypothesis tests at the same time. Choose (d) if all statements are true.

• A)The overall significance level is always smaller than the significance level for any one of the individual tests.
• B)The overall level of significance is the probability of mistakenly rejecting the null hypothesis in at least one of several hypothesis tests.
• C)The overall level of significance is found by adding the significance levels of each of the several hypothesis tests.
• D)All of the above statements are true.

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Definitions:

Durbin-Watson Test

A statistical test used to detect the presence of autocorrelation in the residuals from a regression analysis.

Negative Autocorrelation

A statistical property where a variable is inversely correlated with its own lagged values, implying that positive changes are likely followed by negative changes, and vice versa.

Durbin-Watson Statistic

A statistical measure employed to identify autocorrelation within the residuals of a linear regression study.

Hypotheses Testing

A statistical method used to decide whether there is enough evidence to reject a null hypothesis, based on sample data.