Answer:
.29
Step-by-step explanation:
Where are the options ? But I know 5% of 352 = 17,6
Answer:
Here's the solution and full explanation for your question:
Step-by-step explanation:
Please let me know if you have any questions or in need of further clarifications.
<h2><em>a) </em><u>The z-value associated with 25.0</u></h2><h2>Z =
1.25</h2><h2 /><h2><em>b)</em> <u>proportion of the population is between 20.0 and 25.0 is</u></h2><h2>Proportion =
0.3944</h2><h2 /><h2><em>c)</em> <u>proportion of the population is less than 18.0 is</u></h2><h2>Proportion =
0.3085</h2>
Calculations:
Normal pop has mean of 20.0
standard deviation = 4.0
XNN(20.0, 4.0)
a).
<u>Z = 1.25</u>
<u></u>
b).
The proportion between 20 and 25 is P(20 <x<25.0)
P(20 < x < 25)=0.3944
c).
The proportion value is less than 18 when
P(x<18) = 0.3085