In Exercise 60, is there enough evidence to reject the claim at the = 0.05 level?

In Exercise 60, is there enough evidence to reject the claim at the α = 0.05 level? Explain.

Data from Exercise 60:

A restaurant claims that the standard deviation of the lengths of serving times is 3 minutes. A random sample of 27 serving times has a standard deviation of 3.9 minutes. At a = 0.01, is there enough evidence to reject the claim?