Final answer:
The claim μ ≤ 663 would make the null hypothesis H0: μ ≤ 663, and the alternative hypothesis Ha: μ > 663.
Step-by-step explanation:
The statement μ ≤ 663 represents a claim in the context of hypothesis testing. Its complement would be μ > 663. In statistical hypothesis testing, the null hypothesis, H0, typically contains some form of equality (equals, less than or equal to, greater than or equal to). Thus, for the given claim, the null hypothesis H0 would be μ ≤ 663. The alternative hypothesis, Ha, contains the complement and is usually expressed using less than, greater than, or not equal symbols. Therefore, Ha would be μ > 663, indicating the research hypothesis that the mean is greater than 663.