Need Asap.

Answer Must be Correct.

Question 4 (25 Marks) (a) A researcher wanted to compare the pulse rates of the 30-40 years old patients before and after taken a medicine. Eight patients were randomly selected. The rates are given in Table 3. At a = 0.01, can you conclude that there is a difference in the pulse rate? Table 3 Pulse rate before taking medicine 87 92 78 83 88 90 84 93 Pulse rate after taking medicine 83 95 79 83 86 93 80 86 (16 marks)