The respiratory system can be a limiting factor in maximal exercise performance.

Question

The respiratory system can be a limiting factor in maximal exercise performance. Researchers from the United Kingdom studied the effect of two breathing frequencies on both performance times and several physiological parameters in swimming. Subjects were 10 male collegiate swimmers. Here are their times in seconds to swim 200 meters at 90% of race pace when breathing every second stroke in front crawl swimming: 155.7 165.5 160 161.9 174.8 174.3 175.4 175.8 169.1 172.7 Find the five-number summary (± ± 0.001) of the data.

Explanation / Answer

Ans:

Sorted data(ascending order):

Minimum=155.700

First quartile,Q1=162.800

median=(169.1+172.7)/2=170.900

Third quartile,Q3=174.675

Maximum=175.800

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