For Problem 5, find the indicated z-score and sketch the curve. 5. Find the z-score for which 80% of the distribution's area lies between-z and z.

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Author:Amos Gilat
Publisher:Amos Gilat
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For Problem 5, find the indicated z-score and sketch the curve.
kett-St.
5. Find the z-score for which 80% of the distribution's area lies between -z and z.
create
6. Let x be a random variable that represents white blood cell count per cubic milliliter of
whole blood. Assume that x has a distribution that is approximately normal with a mean
u= 7500 and o = 1750. A test result of x < 3500 is an indication of leucopenia. This
indicates bone marrow depression that may result in a viral infection.
a. What is the probability that on a single test x is less than 3500?
nts
b. A patient is given 3 tests at regular intervals. What is the probability that the average
of the three tests is less than 3500?
elissa Bar
Page
1 / 5
Q +
k
Transcribed Image Text:For Problem 5, find the indicated z-score and sketch the curve. kett-St. 5. Find the z-score for which 80% of the distribution's area lies between -z and z. create 6. Let x be a random variable that represents white blood cell count per cubic milliliter of whole blood. Assume that x has a distribution that is approximately normal with a mean u= 7500 and o = 1750. A test result of x < 3500 is an indication of leucopenia. This indicates bone marrow depression that may result in a viral infection. a. What is the probability that on a single test x is less than 3500? nts b. A patient is given 3 tests at regular intervals. What is the probability that the average of the three tests is less than 3500? elissa Bar Page 1 / 5 Q + k
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