Case: A manager in a small family firm aims to analyse potential determinants triggering organization's financial performance. In this family firm, both family and non-family member employees have worked together. To achieve his aim, he collected data from 10 employees and obtained following dataset.

A)Using the data set, please analyse if there is a significant difference between family-member and non-family member employees' career satisfaction level. Develop null and alternative hypotheses and provide results whether null hypothesis can be rejected or not using confidence interval. Comment. (? = 7.22, z.025 = 1.96).