Question
The mean diastolic blood pressure for a random sample of60 people was87 millimeters of mercury. If the standard deviation of individual blood pressure readings is
The mean diastolic blood pressure for a random sample of60
people was87
millimeters of mercury. If the standard deviation of individual blood pressure readings is known to be8
millimeters of mercury, find a90
%
confidence interval for the true mean diastolic blood pressure of all people. Then give its lower limit and upper limit.
Carry your intermediate computations to at least three decimal places. Round your answers to one decimal place. (If necessary, consult alist of formulas.)
Lower limit:
Upper limit:
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Basic College Mathematics With Early Integers
Authors: Marvin L Bittinger, Judith A Beecher
3rd Edition
0321922794, 9780321922793
