A certain group of test subjects had pulse rates with a mean of 77.6 beats per m

Question

A certain group of test subjects had pulse rates with a mean of 77.6 beats per minute and a standard deviation of 13.2 beats per minute. Use the range rule of thumb to identify the limits separating values that are significantly low or significantly high. Is a pulse rate of 74.0 beats per minute significantly low or significantly high?

Significantly low values are____ beats per minute or lower.

(Type an integer or a decimal. Do not round.)

Significantly high values are_____beats per minute or higher.

(Type an integer or a decimal. Do not round.)

Is a pulse rate of 74.0 beats per minute significantly low or significantly high?

Explanation / Answer

Rule of thumb is

Maximum= mean+2S.D = 77.6+2*13.2=104 beats/minute

Minimum= mean-2*S.D = 77.6-2*13.2= 51.2 beats/minute

No pulse rate 74.0 beats per minutes significantly low or significantly high.

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