It is thought that there are a variety of factors that affect a teacher's salary. Using the following printout and sample data, determine whether the holding of a PhD degree is a significant variable when tested at the 1% level of significance. X₁is years of teaching experience, X₂is principal's rating and x₃is the presence of a PhD or not. A) Since the p-value is less than the level of significance, the null hypothesis is rejected, and so the holding of a PhD should be included in the analysis. B) Since the p-value is less than the level of significance, the null hypothesis is accepted, and so the PhD should not be included in the analysis. C) Since the p-value is more than the level of significance, the null hypothesis is accepted, and so the PhD should not be included in the analysis. D) Since the p-value is more than the level of significance, the null hypothesis is rejected, and so the PhD should be included in the analysis.

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The Answer of It is thought that there are a variety of factors that affect a teacher's salary. Using the following printout and sample data, determine whether the holding of a PhD degree is a significant variable when tested at the 1% level of significance. X₁is years of teaching experience, X₂is principal's rating and x₃is the presence of a PhD or not. A) Since the p-value is less than the level of significance, the null hypothesis is rejected, and so the holding of a PhD should be included in the analysis. B) Since the p-value is less than the level of significance, the null hypothesis is accepted, and so the PhD should not be included in the analysis. C) Since the p-value is more than the level of significance, the null hypothesis is accepted, and so the PhD should not be included in the analysis. D) Since the p-value is more than the level of significance, the null hypothesis is rejected, and so the PhD should be included in the analysis.

It Is Thought That There Are a Variety of Factors