A researcher is interested in finding the average duration of marriage based on the educational qualifications of couples. Two groups were considered for the study: Group 1 consisted of couples with no Bachelor’s degree (both partners) and Group 2 consisted of couple who both have Bachelor’s degree or higher. Data in Table 1 shows average duration of marriage in years. At alpha (significance value) = 0.05, find t statistic Value for  average duration of marriage is more for couples with no Bachelor’s degree as compared to couples with Bachelor’s degree.

Table 1: Data related to duration of marriage from different groups