Two coffee-vending machines are studied to determine whether they distribute the same amounts. Samples are taken and the number of ounces is recorded for each machine. What is the appropriate null hypothesis for the claim that they distribute the same amount of coffee? A) H₀: μ_DA ≥ μ_DB B) H₀: μ_DA = μ_DB C) H₀: μ_DA ≤ μ_DB D) H₀: μ_DA ≠ μ_DB

Question

Quizplus · Accepted Answer

H₀: D_A and D_B are identical probability distributions. H_A: D_A is shifted to the right or left of D_B. Or H₀: μ_DA = μ_DB; H_A: μ_DA ≠ μ_DB

Two Coffee-Vending Machines Are Studied to Determine Whether They Distribute