1.An important hypothesis in hypertension research is that sodium restriction may lower blood pressure. However, it is difficult to achieve sodium restriction over the long term, and dietary counseling in a group setting is sometimes used to achieve this goal. The data on urinary sodium (mEq/8hr) in the table below were obtained from 36 older adults who had received 8 weeks of prior dietary counselling and 32 older adults who received no dietary counselling. Previous research has shown that sodium is not normally-distributed in the older adult population. Use these data to answer the questions below the table.