Question

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6. Shear strength measurements derived from unconfined compression tests for two types of soils gave the results shown in the following table (measurements in tons per square foot) Soil Type I Soil Type I n1 30 X1 1.65 X2 = 1.43 81=0.26 s2 = 0.22 Note) T-table does not carry all possible values for degrees of freed of freedom that you are looking for, you can take the closest degree of freedom. For example, if you need to use df-51, try to use df 50 from T-table. om. If you can not find a degree

Answer 1

Here we have * X21.43 S2 - 0.22 S 0.26 2_ 2 212 o.22 022212 3a-11 30 35- 571 Test shasfc lest

1.65- 1. 43 2 0.26 3.6 4#334. 5.65 시CA) T기끼3.65,5%2) 产value . KJ/0.0006 11.65-1.43) + 2.665/0.26.- 0.22 3.5 0.22 + 0.16아 0 093 1 0-3807 Based on a beve conHde n ca fnkrval we