Solution Found!
Examine the sample data in the accompanying table.5.9 5.3
Chapter 4, Problem 120E(choose chapter or problem)
Problem 120E
Examine the sample data in the accompanying table.
5.9 5.3 1.6 7.4 8.6 1.2 2.1 |
4.0 7.3 8.4 8.9 6.7 4.5 6.3 |
7.6 9.7 3.5 1.1 4.3 3.3 8.4 |
1.6 8.2 6.5 1.1 5.0 9.4 6.4 |
a. Construct a stem-and-leaf plot to assess whether the data are from an approximately normal distribution.
b. Compute s for the sample data.
c. Find the values of QL and QU and the value of s from part b to assess whether the data come from an approximately normal distribution.
d. Generate a normal probability plot for the data and use it to assess whether the data are approximately normal.
Questions & Answers
QUESTION:
Problem 120E
Examine the sample data in the accompanying table.
5.9 5.3 1.6 7.4 8.6 1.2 2.1 |
4.0 7.3 8.4 8.9 6.7 4.5 6.3 |
7.6 9.7 3.5 1.1 4.3 3.3 8.4 |
1.6 8.2 6.5 1.1 5.0 9.4 6.4 |
a. Construct a stem-and-leaf plot to assess whether the data are from an approximately normal distribution.
b. Compute s for the sample data.
c. Find the values of QL and QU and the value of s from part b to assess whether the data come from an approximately normal distribution.
d. Generate a normal probability plot for the data and use it to assess whether the data are approximately normal.
ANSWER:
Step 1 of 5
A sample data is given.
5.9 |
5.3 |
1.6 |
7.4 |
8.6 |
1.2 |
2.1 |
4.0 |
7.3 |
8.4 |
8.9 |
6.7 |
4.5 |
6.3 |
7.6 |
9.7 |
3.5 |
1.1 |
4.3 |
3.3 |
8.4 |
1.6 |
8.2 |
6.5 |
1.1 |
5.0 |
9.4 |
6.4 |
(a) We have to construct a stem- and - leaf plot to assess whether the data are from an approximately normal distribution.
(b) We have to compute s for the sample data.
(c) We have to find the values QL and QU and the value of s from part b to assess whether the data come from an approximately normal distribution.
(d) We have to generate a normal probability plot for the data and use it to assess whether the data are approximately normal.