Question

Body Fat % Income for Recreation % Stress Index 13 10 7 8 15 8 5...

Body Fat % Income for Recreation % Stress Index
13 10 7
8 15 8
5 12 12
11 9 15
6 10 6
7 20 9
9 11 5
13 11
14

2.   Determine the area under the normal curve for the following z scores:

   a.   Above z = 1.50

   b.   Below z = -.25

   c.   Between z = -.50 and z = .75

   d.   Above z = 2.25 and below z = -1.45

   e.   Between z= 1.00 and 2.50

Homework Answers

Answer #1

Here we want to find the area under the normal curve for the following mentioned Z-scores

(A)

P(Z> 1.50) = 1- P(Z <1.50)

=1- 0.9332 using standard normal z probablity table

=0.0668

(B)

P(Z < -0.25) = 0.4013 using standard normal z probablity table

(C)

=0.7734 - 0.3085 using standard normal z probablity table

=0.4649

(D)

=0.9875 - 0.0735 using standard normal z probablity table

=0.9140

(E)

=0.9938 - 0.8413 using standard normal z probablity table

=0.1525

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