A fitness center claims that the mean amount of time that a person spends at the gym per visit is 33 minutes. Identify the null hypothesis, H₀, and the alternative hypothesis, Hₐ, in terms of the parameter μ . Select the correct answer below:
a. H₀ : μ ≠ 33 ; Hₐ : μ = 33
b. H₀ : μ = 33 ; Hₐ : μ ≠ 33
c. H₀ : μ ≥ 33 ; Hₐ : μ < 33
d. H₀ : μ ≤ 33 ; Hₐ : μ > 33
