Question
Diastolic Blood Pressure (DBP) has a normal distribution of 2.5% in young healthy people having a value of 60 mmHg or lower, and 2.5% of
Diastolic Blood Pressure (DBP) has a normal distribution of 2.5% in young healthy people having a value of 60 mmHg or lower, and 2.5% of 90 mmHg or higher (hint: find the z-score that corresponds to 2.5% in the tails).
(A) Find the population mean and standard deviation for DBP (may have to use algebra to solve this problem - 2 equations and 2 unknowns).
(B) What proportion of people have a value of 70 mmHg or higher (use your answer from question above).
(C) What is the 25th percentile of DBP?
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Auditing A Business Risk Approach
Authors: Karla Johnstone, Audrey Gramling, Larry Rittenberg
8th edition
538476230, 978-0538476232
