This preview shows pages 1–2. Sign up to view the full content.
Web
Assign
HW 6.2 FA10 (Homework)
Chris O'Neal
STAT 7770 FA10, Fall 2010
Instructor: Chandler Pike
Current Score :
0 / 100
Due :
Thursday, September 30, 2010 05:30 PM EDT
0/8 submissions
1.
–/8 points
For a normal distribution, find the probability within
(a) 1.81 standard deviations of the mean.
Probability =
(4 decimal places)
(b) 0.64 standard deviations of the mean.
Probability =
(4 decimal places)
2.
–/8 points
For a standard normal random variable, what
z
score has
(a) probability 0.225 to the right?
z
=
(4 decimal places)
(b) probability 0.925 to the left?
z
=
(4 decimal places)
3.
–/12 points
A World Health Organization study (the MONICA project) of health in various countries reported that in Canada, systolic
blood pressure readings have a mean of
118
and a standard deviation of
20
. A reading above 146 is considered to be high
blood pressure.
(a) What is the
z
score for a blood pressure reading of 146?
z
This preview has intentionally blurred sections. Sign up to view the full version.
View Full Document
This is the end of the preview. Sign up
to
access the rest of the document.
 Fall '08
 smith
 Statistics

Click to edit the document details