A counselor desires to show that for men who are married through the time they are 30, ? = average age when the men are married isn't 21 years old. A random sample of 10 men who were married by age 30 showed an average age at marriage of 22.2, with the sample standard deviation of 1.9 years. Suppose that the age at which this population of men gets married for the first time is normally distributed. Determine the value of the test statistic?
A) t =1.80
B) t =2.00
C) t =2.33