A certain group of test subjects had pulse rates with a mean of 81.981.9 beats p
ID: 2949059 • Letter: A
Question
A certain group of test subjects had pulse rates with a mean of
81.981.9
beats per minute and a standard deviation of
10.610.6
beats per minute. Would it be unusual for one of the test subjects to have a pulse rate of
133.1133.1
beats per minute?Minimum "usual"
valueequals=nothing
beats per minute
(Type an integer or a decimal.)
Maximum "usual"
valueequals=nothing
beats per minute
(Type an integer or a decimal.)
Is
133.1133.1
beats per minute an unusual pulse rate?
A.
No comma because it is between the minimum and maximum "usual" values.No, because it is between the minimum and maximum "usual" values.
B.
No, because it is smaller than the minimum "usual" value.
C.
No, because it is larger than the maximum "usual" value.
D.
Yes comma because it is smaller than the minimum "usual" value.Yes, because it is smaller than the minimum "usual" value.
E.
Yes, because it is between the minimum and maximum "usual" values.
F.
Yes comma because it is larger than the maximum "usual" value.Yes, because it is larger than the maximum "usual" value.
Explanation / Answer
Minimum usual value = Mean - 2xstandard deviation
= 81.9 - 2x10.6
= 60.7 beats per minute
Maximum usual value = Mean + 2xstandard deviation
= 81.9 + 2x10.6
= 103.1 beats per minute
F. Yes, because it is larger than the maximum "usual" value
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