Alternative Hypothesis: High school chemistry students who participate in a standard chemistry curriculum that is augmented with intelligent computer-based chemistry tutors will demonstrate higher chemistry achievement, as measured by higher scores on a standardized achievement test, when compared to students receiving only the standard chemistry curriculum. Which one of the following represents the way to state the narrative alternative hypothesis symbolically? The ₁ refers to the population mean that is being estimated on science achievement of the students in the condition of the standard chemistry curriculum that is augmented with intelligent computer-based chemistry tutors and ₂ refers to the population mean that is being estimated on science achievement of the students in the condition of the standard chemistry curriculum only.

Group of answer choices

H₀: ₁ = ₂

H_a: ₁ < ₂

H_a: ₁ > ₂

H₀: ₁ > ₂

H_a: _{1 2}