Thirty-one participants aged 38 to 57 run a mile and their maximum pulse rate, a

Question

Thirty-one participants aged 38 to 57 run a mile and their maximum pulse rate, also known as the heart rate, is recorded. A graph of the data and summary statistics of the data are given in the following JMP Applet.

JMP Applet

Thirty-one participants aged 38 to 57 run a mile and their maximum pulse rate, also known as the heart rate, is recorded. A graph of the data and summary statistics of the data are given in the following JMP Applet. JMP Applet MaxPulse Summary Statistics 173.77418 Sid Dee9.1640954 31 155 192 172 Mean Minimum Maximum Median 160t56 160 166 170 176 180 05 100106 Click here to access the JMP applet in a new window. (a) What is the range for the maximum pulse rate? (b) What is the range for the lower 50% of maximum pulse rates? (c) An approximation of the maximum pulse rate for an adult is directly related to their age by the following equation. rate = 220-age How does the range of approximated maximum pulse rates compare to the range of observed maximum pulse rates of the participants? The range of approximated maximum pulse rates is Selectt the range of observed maximum pulse rates of the particpants.

Explanation / Answer

a) The range of maximum pulse rate is = (Max - Min) = (195-155) = 40

b) The lower half is the data below the median(172) , the range of the lower half = (172-155) = 17

c) approxiated pulse rate :

Ratemin = 220- 57 = 163

Ratemax = 220-38 = 182  

So, range = 182-163 =19

If you have doubts, let me know below. Thanks

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