Solution Found!
Construct a normal probability plot for the PM data in
Chapter 4, Problem 5E(choose chapter or problem)
Construct a normal probability plot for the PM data in Table 1.2 (page 21). Do the PM data appear to come from a normal population?
Questions & Answers
QUESTION:
Construct a normal probability plot for the PM data in Table 1.2 (page 21). Do the PM data appear to come from a normal population?
ANSWER:
Solution :
Step 1 of 1:
We know that n is 62
Our goal is:
We need to construct a normal probability plot for the PM data and
We need to find do the PM data appear to come from an approximately normal population.
Now we have to construct a normal probability plot for the PM data.
The formula of the cumulative probability is
=
Where i = 1,2,3,...,62.
And n=62.
We are using excel to plot the normal probability.
Here we sorted values.
We are using =NORMSINV function to find the .
=NORMSINV(0.00806452)
Then we get value is -2.40598261.
The data is given below.
i |
|
|
|
i |
|
|
|
1 |
1.11 |
0.00806452 |
-2.40598261 |
32 |
5.84 |
0.50806452 |
0.02021612 |
2 |
1.5 |
0.02419355 |