Final answer:
The correct null and alternative hypothesis for testing whether there is a difference in the means in a CR-3 design would be Choice 1: H0: μ1 = μ2 = μ3 versus H1: not all μi are equal.
Step-by-step explanation:
The correct null and alternative hypothesis for testing whether there is a difference in the means in a CR-3 design would be Choice 1: H0: μ1 = μ2 = μ3 versus H1: not all μi are equal.