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QUESTION 5 One indicator of phvsical fitness is resting pulse rate. Ten men volunteered to test the exercise device as advertised on television by using it three times a week for 20 minutes. Their pulse rate (beats per minute) were measured before and after six week of the test. The data recorded and analvzed using SPSS. The results as shown below. Paired Samples Statistics m_ td- Deviation td- Error Mean Before :5. 2000 6. 89283 2.12970 Pair 1 After 2.0000 10 5.94418 1.8?972 Paired Differences Mean Std. Deviation 95% Confidence Interval of the Lower Difference Upper a) Find the value of G. (1 mark] h) Prove the tstotistic value for the above studv. {2 marks) c) State the 95% confidence interval for the mean difference before and after six week of the test. (1 mark) d) at the 5% level of significance, is there sufficient evidence to indicate that this kind of exercise device could reduce resting pulse rate? [4 marks)