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Please do all parts! Do not use statistics software. I want to see the formulas. study of...

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Question

Statistics

Please do all parts! Do not use statistics software. I want tosee the formulas.

study of the effect of caffeine on muscle metabolism used 24male volunteers who each underwent arm exercise tests. 12 of themen were randomly selected to take a capsule containing purecaffeine one hour before the test. The other men received a placebocapsule. During each exercise the subject's respiratory exchangeratio (RER) was measured. (RER is the ratio of CO2 produced to O2consumed and is an indicator of whether energy is being obtainedfrom carbohydrates or fats). The question of interest to theexperimenter was whether, on average, caffeine changes RER. Data isin:

Placebo

Caffeine

105

96

119

99

100

94

97

89

96

96

101

93

94

88

95

105

98

88

95

90

103

97

102

92

a. Construct a hypothesis test that detect whether thereis difference in RER between two groups at .05 significant level(show steps)

b. Construct a hypothesis test that detect whetherCaffeine reduces RER compared to placebo at .05 significant level(show steps)

Answer & Explanation Solved by verified expert
3.9 Ratings (372 Votes)
Conclusion Based ongiven data we reject null hypothesis so that we can conclude thatwe have    See Answer
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