2. An article in Journal of Strain Analysis (vol. 18, no. 2, 1983) compares several procedures for predicting the shear strength for steel plate girders. Data for nine girders in the form of the ratio of predicted to observed load for two of these procedures, the Karlsruhe and Lehigh methods, are as follows: Bridge with steel plate girder design Girder Karlsruhe Lehigh Method Method S1/1 1.186 1.061 S2/1 1.151 0.992 S3/1 1.322 1.063 S4/1 1.339 1.062 S5/1 1.200 1.065 S2/1 1.402 1.178 $2/2 1.365 1.037 S2/3 1.537 1.086 S2/4 1.559 1.052 Is there any evidence to support a claim that there is a difference in mean performance between the two methods? Use a = 0.05.
2. An article in Journal of Strain Analysis (vol. 18, no. 2, 1983) compares several procedures for predicting the shear strength for steel plate girders. Data for nine girders in the form of the ratio of predicted to observed load for two of these procedures, the Karlsruhe and Lehigh methods, are as follows: Bridge with steel plate girder design Girder Karlsruhe Lehigh Method Method S1/1 1.186 1.061 S2/1 1.151 0.992 S3/1 1.322 1.063 S4/1 1.339 1.062 S5/1 1.200 1.065 S2/1 1.402 1.178 $2/2 1.365 1.037 S2/3 1.537 1.086 S2/4 1.559 1.052 Is there any evidence to support a claim that there is a difference in mean performance between the two methods? Use a = 0.05.
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Transcribed Image Text:2. An article in Journal of Strain Analysis (vol. 18, no. 2, 1983)
compares several procedures for predicting the shear strength
for steel plate girders. Data for nine girders in the form of the
ratio of predicted to observed load for two of these procedures,
the Karlsruhe and Lehigh methods, are as follows:
Bridge with steel plate girder design
Girder
Karlsruhe
Lehigh Method
Method
S1/1
1.186
1.061
S2/1
1.151
0.992
S3/1
1.322
1.063
S4/1
1.339
1.062
S5/1
1.200
1.065
S2/1
1.402
1.178
S2/2
1.365
1.037
S2/3
1.537
1.086
$2/4
1.559
1.052
Is there any evidence to support a claim that there is a difference in mean performance between
the two methods? Use α = 0.05.
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