Question: Fit a two-level, random-intercept model with a random intercept and three student-level predictor variables, gender, byses, and usecalc. Use the grand-mean centering for byses and

Fit a two-level, random-intercept model with a random intercept and three student-level predictor variables, gender, byses, and usecalc. Use the grand-mean centering for byses and usecalc before fitting the model.

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