An accountant claims to be able to complete a standard tax return in under an hour. For a random sample of 24 tax returns, the accountant averaged 63.2 minutes with a standard deviation of 7.7 minutes. What are the appropriate null and alternative hypotheses?
1) H0 : μ = 60 and H1 : μ ≠ 60
2) H0 : μ = 60 and H1 : μ > 60
3) H0 : μ = 60 and H1 : μ < 60
4) H0 : μ > 60 and H1 : μ ≤ 60