A certain group of test subjects had pulse rates with a mean of 78.6 beats per m

Question

A certain group of test subjects had pulse rates with a mean of 78.6 beats per minute and a standard deviation of 11.7 beats per minute. Would it be unusual for one of the test subjects to have a pulse rate of 62.0 beats per minute?

Minimum "usual"value equals= ____ beats per minute

(Type an integer or a decimal.)

Maximum "usual" value equals= _____beats per minute

(Type an integer or a decimal.)

Is 62.0 beats per minute an unusual pulse rate?

A. Yes comma because it is smaller than the minimum "usual" value.Yes, because it is smaller than the minimum "usual" value.

B. No, because it is smaller than the minimum "usual" value.

C. No comma because it is between the minimum and maximum "usual" values.No, because it is between the minimum and maximum "usual" values.

D. Yes, because it is between the minimum and maximum "usual" values.

E. Yes comma because it is larger than the maximum "usual" value.Yes, because it is larger than the maximum "usual" value.

F. No, because it is larger than the maximum "usual" value.

Explanation / Answer

Minimum usual value = 78.6 - 2*11.7 = 55.2

Maximum usual value =  78.6 + 2*11.7 = 102

No, because it is between the minimum and maximum "usual" values.

Option C is correct.

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