The brain volumes ​(cm3​) of 20 brains have a mean of 1125.4 cm3 and a standard deviation of 129.2 cm3. Use the given standard deviation and the range rule of thumb to identify the limits separating values that are significantly low or significantly high. For such​ data, would a brain volume of 1333.8 cm3 be significantly​ high?

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The brain volumes

​(cm3​)
of 20 brains have a mean of
1125.4
cm3
and a standard deviation of
129.2
cm3.
Use the given standard deviation and the range rule of thumb to identify the limits separating values that are significantly low or significantly high. For such​ data, would a brain volume of
1333.8
cm3
be significantly​ high?
 
Significantly low values are
nothing
cm3
or lower.
​(Type an integer or a decimal. Do not​ round.)
Significantly high values are
nothing
cm3
or higher.
​(Type an integer or a decimal. Do not​ round.)
Is
1333.8
cm3
significantly​ high?
 
 
A.
​No, because it is below the lower limit separating value.
 
B.
​Yes, because it is between the limits separating values.
 
C.
No, because it is between the limits separating values.
 
D.
​No, because it is above the upper limit separating value.
 
E.
Yes, because it is below the lower limit separating value.
 
F.
 
 
 
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