hi its sci1020 statistic question which is related to the confidence level and level of significance.

I would appreciate the answer within 1 hours

Thanks in advance :)

Question 2 (22 marks) In a study on the effect of caffeine on muscle metabolism, nine male volunteers from a random group of men underwent arm exercise tests on two separate occasions. On one occasion the volunteer took a placebo capsule an hour before the test; on the other occasion he received a capsule containing caffeine. The order of these treatments was randomised for each participant. During each exercise test, the ratio of carbon dioxide produced to oxygen consumed (respiratory exchange ratio or "RER") was measured. The data are as follows: Volunteer 1 2 3 4 5 6 7 8 9 Placebo: 105 109 93 99 96 101 96 95 98 Caffeine: 96 99 89 95 88 95 88 93 88 a) Are these data paired or unpaired? b What conditions are needed to proceed with inference using this data? Perform a check to show that the conditions are valid. C) Calculate the relevant summary statistics from the data. d) Determine if there is sufficient evidence to conclude that caffeine consumption affects the mean % RER 1. by calculating a 90% confidence interval for the mean change in %RER with use of caffeine; and 2. by conducting a test of significance at a significance level of 5%. Follow all steps clearly and write a clear conclusion. e) Compare your answers in d) and explain why you could draw such comparison