We wish to test if the two varieties are significantly different in their mean carbohydrate content. Which of the following are the appropriate null and alternative hypotheses for this situation?
μ ₀ ₁ ₂
a. H₀ : μ₁ = μ₂ ; Hₐ : μ₁ < μ₂
b. H₀ : μ₁ = μ₂ ; Hₐ : μ₁ > μ₂
c. H₀ : μ₁ = μ₂ ; Hₐ : μ₁ ≠ μ₂
d. H₀ : x₁ = x₂ ; Hₐ : x₁ < x₂
e. H₀ : x₁ = x₂ ; Hₐ :xμ₁ ≠ x₂