company is comparing methods for producing pipes and wants to choose the method with the least vanability. It has taken a sample of the lengths of the pipes using both methods shown on the lable below. Conduct lo-Variance 1 <-Variance 2, 11-Variance 1 > Variance 2. -Method 1 7 7 L2 11 1.9 8 Method 2 3.7 4.1 3.5 5.5 4.1 4.7 etermine if the results are signifi

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A company is comparing methods for producing pipes and wants to choose the method with the least variability. It has taken a sample of the lengths of the pipes using both methods as shown on the Table below. Conduct an F test at alpha-05 to determine if the results are significant.
Ho - Variance 1 <-Variance 2,
H1 - Variance 1 > Variance 2.
Method 1
4.7
3.7
3.2
3.1
3.9
4.8
3.1
5.1
4.9
5.3
2.8
4.2
Fcritical
Fstatistic
Method 2
3.7
4.1
3.5
5.5
4.1
4.7
4.9
3.5
3.9
3.7
4.8
5
5.3
4.4
4.6
Reject null hypothesis? (Yes, No)
[Choose]
[Choose]
[Choose]
Transcribed Image Text:A company is comparing methods for producing pipes and wants to choose the method with the least variability. It has taken a sample of the lengths of the pipes using both methods as shown on the Table below. Conduct an F test at alpha-05 to determine if the results are significant. Ho - Variance 1 <-Variance 2, H1 - Variance 1 > Variance 2. Method 1 4.7 3.7 3.2 3.1 3.9 4.8 3.1 5.1 4.9 5.3 2.8 4.2 Fcritical Fstatistic Method 2 3.7 4.1 3.5 5.5 4.1 4.7 4.9 3.5 3.9 3.7 4.8 5 5.3 4.4 4.6 Reject null hypothesis? (Yes, No) [Choose] [Choose] [Choose]
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