Solution25:
for males z=-1.3525
mean=68
sd=3.5
z=x-mean/sd
-1.3525=x-68/3.5
x=-1.3525*3.5+68
x=63.26625
x=63.3
he is 63.3 nches tall
Solution24:
For females mean=62
sd=2.5
z=1.3525
z=x-mean/sd
1.3525=x-62/2.5
x=1.3525*2.5+62
x=65.38125
x=65.4
she is 65.4 inches tall
Solution27:
z males=x-mean/sd
z=180-170/19
z=10/19
z=0.5263158
Solution28:
Z for females
z=x-mean/sd
=154-145/17
z=9/17
z=0.5294118
The mean height of males 20 years or older is 68 inches with a standard deviation...
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