statistics
posted by angela
Assume that human body temperature are
normally distributed with a mean 98.21 F
and a standard deviation of 0.61F
a)A hospital uses 100.6 as the lowest
temperature considered to be a fever. What
percentage of normal and healthy persons
would be considered to have a fever. Does
this percentage suggest that a cut off of 100.6 F is appropriate?
b) Physicians want to select a minimum temperature for requiring further medical tests. What should that temperature, be if we only 5.0 of healthy people to exceed it.(Such a result is a false positive, meaning that
the test result is positive, but the subject is not really sick.

PsyDAG
a) Z = (scoremean)/SD
Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability related to the Z score.
Do you consider it appropriate?
b) It would help if you proofread your questions before you posted them. Only “5.0 of healthy people”? Five people out of how many? 
ALEX
ISK
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