SOLUTION: a pain relief drug is normally distributed with mean 2 hours and standard deviation 0.3 hour. For a patient selected at random:
a) What is the probability that the drug will be
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Question 162178This question is from textbook
: a pain relief drug is normally distributed with mean 2 hours and standard deviation 0.3 hour. For a patient selected at random:
a) What is the probability that the drug will be effective for 2 hours or less?
b) What is the probability that the drug will be effective for 1 hour or less?
c) What is the probability that the drug will be effective for 3 hours or more?
This question is from textbook
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
Use the z score, ,
with x=the value you're interested in,
is the mean
is the standard deviation.
Then use a lookup table, calculator, or NORMSDIST in Excel.
.
.
.
a) , p=0.5
b) , p=0.000429
c) , p=0.999571,
Also, p=1-0.000429=0.999571
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