Final answer:
The hypotheses mentioned refer to a valid set for a two-tailed statistical test at the college level, where the null hypothesis is that the population mean is 11 and the alternative hypothesis is that it's not equal to 11.
Step-by-step explanation:
The subject of the question is statistics, specifically about forming and evaluating null and alternative hypotheses for a statistical test. The question comes from a high-level discussion of hypothesis testing, which indicates that it's likely a college-level subject.
The set of hypotheses presented by the student: H₀ : μ=11 VS Hₐ :μ≠11 is valid for a statistical test, where H₀ is the null hypothesis stating that the population mean is equal to 11, and Hₐ is the alternative hypothesis stating that the population mean is not equal to 11. This forms a two-tailed test since the alternative hypothesis does not specify a direction of difference (neither greater than nor less than 11), but merely that the mean is not equal to 11.