While Ignoring the Independent Variable,we Make 78 Errors When Predicting

question 25

Multiple Choice

While ignoring the independent variable,we make 78 errors when predicting the dependent variable.When taking the independent into account,we reduce the number of errors to 43.Therefore,

• A)the variables are not associated.
• B)the variables are associated.
• C)the independent variable is definitely a cause of the dependent variable.
• D)phi will be 0.

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Definitions:

BCa Confidence Intervals

A type of confidence interval used in statistics that adjusts for both bias and skewness in bootstrapping, providing a more accurate interval estimate.

Statistic

A numerical value that summarizes or describes a characteristic of a sample of data.

Permutation Test

A nonparametric method to determine statistical significance by computing all possible arrangements of observed data.

Two-Sample T Test

A statistical method used to compare the means of two independent samples to determine if there is a significant difference between them.