A machine produces metal rods used in an automobile suspension system. A random sample of 15 rods is selected, and the diameter is measured. The resulting data (in millimetres) are as follows: 8.24 8.25 8.20 8.23 8.24 8.21 8.26 8.26 8.20 8.25 8.23 8.23 8.19 8.28 8.24 Construct a 95% confidence interval on variance rod diameter. A. (0.0004;0.0015) B. (0.0003;0.0016) C. (0.00034;0.00159) D. (0.0004;0.0016)
A machine produces metal rods used in an automobile suspension system. A random sample of 15 rods is selected, and the diameter is measured. The resulting data (in millimetres) are as follows: 8.24 8.25 8.20 8.23 8.24 8.21 8.26 8.26 8.20 8.25 8.23 8.23 8.19 8.28 8.24 Construct a 95% confidence interval on variance rod diameter. A. (0.0004;0.0015) B. (0.0003;0.0016) C. (0.00034;0.00159) D. (0.0004;0.0016)
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter4: Equations Of Linear Functions
Section: Chapter Questions
Problem 8SGR
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Question 1
A machine produces metal rods used in an automobile suspension system. A random sample of 15 rods is selected, and the diameter is measured. The resulting data (in millimetres) are as follows:
8.24 |
8.25 |
8.20 |
8.23 |
8.24 |
8.21 |
8.26 |
8.26 |
8.20 |
8.25 |
8.23 |
8.23 |
8.19 |
8.28 |
8.24 |
Construct a 95% confidence interval on variance rod diameter.
A. |
(0.0004;0.0015) |
|
B. |
(0.0003;0.0016) |
|
C. |
(0.00034;0.00159) |
|
D. |
(0.0004;0.0016) |
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