In a random sample of 23 private school teachers in queens county the average teaching experience is 8.4 years with a standard deviation of 3.02 years. In the state of New York private school teachers...

In a random sample of 23 private school teachers in queens county the average teaching experience is 8.4 years with a standard deviation of 3.02 years. In the state of New York private school teachers have a mean of 9.6 years of teaching experience. Are the private school teachers in queens county significantly less experienced than all private school teachers in New York State?