An automotive part must be machined to close tolerances to be acceptable to customers. Production specifications call for a maximum variance in the lengths of the parts of 0.0004. A quality control sample produced the data in the Microsoft Excel Online file below. Using a = 0.05, test to see whether the population variance specification is being violated. Open spreadsheet 1. Formulate the null and alternative hypotheses for this application. Ho: 0² H₂: 0² 2. Test statistic = 3. The p-value is 4. Conclusion: 5. Test results: Check My Work © Reset Problem © (to 2 decimals)
An automotive part must be machined to close tolerances to be acceptable to customers. Production specifications call for a maximum variance in the lengths of the parts of 0.0004. A quality control sample produced the data in the Microsoft Excel Online file below. Using a = 0.05, test to see whether the population variance specification is being violated. Open spreadsheet 1. Formulate the null and alternative hypotheses for this application. Ho: 0² H₂: 0² 2. Test statistic = 3. The p-value is 4. Conclusion: 5. Test results: Check My Work © Reset Problem © (to 2 decimals)
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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![An automotive part must be machined to close tolerances to be acceptable to customers. Production specifications call for a maximum variance in the lengths of the parts of 0.0004. A
quality control sample produced the data in the Microsoft Excel Online file below. Using a = 0.05, test to see whether the population variance specification is being violated.
X
Open spreadsheet
1. Formulate the null and alternative hypotheses for this application.
Ho: 0²
Ha: 0²
2. Test statistic =
3. The p-value is
4. Conclusion:
5. Test results:
Check My Work
↑
ŷ
(to 2 decimals)
Reset Problem
î
î
↑](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fc8514667-bf86-4079-a5fb-967fac7b38d7%2Feeeebf08-6d05-4c59-9401-16a94492f585%2F1khkcxb_processed.png&w=3840&q=75)
Transcribed Image Text:An automotive part must be machined to close tolerances to be acceptable to customers. Production specifications call for a maximum variance in the lengths of the parts of 0.0004. A
quality control sample produced the data in the Microsoft Excel Online file below. Using a = 0.05, test to see whether the population variance specification is being violated.
X
Open spreadsheet
1. Formulate the null and alternative hypotheses for this application.
Ho: 0²
Ha: 0²
2. Test statistic =
3. The p-value is
4. Conclusion:
5. Test results:
Check My Work
↑
ŷ
(to 2 decimals)
Reset Problem
î
î
↑
![D3
2
671SSA WN
A
1 Part Length
5.02
4.97
4.965
5.005
4.98
5.005
4.96
4.945
4.97
4.975
5.01
4.97
4.96
4.985
5
5.005
4.97
4.955
5
4.985
4.945
5.005
4.965
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Inferences About a Population Variance
Level of significance
Critical Value (2 decimals)
Test statistic (2 decimals)
p-value (4 decimals)
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Transcribed Image Text:D3
2
671SSA WN
A
1 Part Length
5.02
4.97
4.965
5.005
4.98
5.005
4.96
4.945
4.97
4.975
5.01
4.97
4.96
4.985
5
5.005
4.97
4.955
5
4.985
4.945
5.005
4.965
3
4
5
8
File
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Home
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33
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25
5
4.95
5.02
4.97
4.95
4.965
4.945
B
Insert
Arial
fx
Draw
Page Layout
✓ 10
+
Sample size
Sample mean
Sample variance
Sample standard deviation
Hypothesized variance
Degrees of freedom
с
D
Inferences About a Population Variance
Level of significance
Critical Value (2 decimals)
Test statistic (2 decimals)
p-value (4 decimals)
Sheet1
Calculation Mode: Automatic Workbook Statistics
Reject null hypothesis?
B
Formulas
0.0004
0.05
↓
E
Data
Review
View
F
Formulas
#N/A
#N/A
#N/A
#N/A
#N/A
#N/A
#N/A
#N/A
#N/A
ab
Help
General
G
H
←0
.00
.00
→.0
J
K
L
M
Editing
Ev AT
N
Give Feedback to Microsoft
P
Comments
100% +
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