Question

10. The average resting heart rate of a population is 87 beats per minute, with a standard deviation of 11 bpm. Find the z-scores that correspond to each of the following heart rates. Round your answers to the nearest hundredth, if necessary.(a) 110 bpmz = (b) 80 bpmz =

Answer 1

The formula for determining the z score is expressed as

z = (data value - mean)/standard deviation

a) data value = 110

mean = 87

standard deviation = 11

z = (110 - 87)/11

z = 2.09

b) data value = 110

mean = 80

standard deviation = 11

z = (80 - 87)/11

z = - 0.64