What is the approximate probability

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Reference no: EM131068188

Runners. In a study of exercise, a large group of male runners walk on a treadmill for 6 minutes. After this exercise, their heart rates vary with mean 8.8 beats per five seconds and standard deviation 1.0 beats per five seconds. This distribution takes only whole-number values, so it is certainly not Normal. What is the approximate probability that x ¯ is between 9 and 9.5 when measuring for 12 intervals?

Reference no: EM131068188

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