Shear strength measurements derived from unconfined

Chapter 10, Problem 21E

(choose chapter or problem)

Get Unlimited Answers
QUESTION:

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). Do the soils appear to differ with respect to average shear strength, at the 1% significance level?

Soil Type I

Soil Type II

\(n_{1}=30\)

\(n_{2}=35\)

\(\bar{y_{1}}=1.65\)

\(\bar{y_{2}}=1.43\)

\(s_{1}=0.26\)

\(s_{2}=0.22\)

Equation Transcription:

 

Text Transcription:

n_1 = 30

bar {Y_1} = 1.65

s_1 = 0.26

n_2 = 35

bar {Y_2} = 1.43

s_2 = 0.22

Questions & Answers

QUESTION:

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). Do the soils appear to differ with respect to average shear strength, at the 1% significance level?

Soil Type I

Soil Type II

\(n_{1}=30\)

\(n_{2}=35\)

\(\bar{y_{1}}=1.65\)

\(\bar{y_{2}}=1.43\)

\(s_{1}=0.26\)

\(s_{2}=0.22\)

Equation Transcription:

 

Text Transcription:

n_1 = 30

bar {Y_1} = 1.65

s_1 = 0.26

n_2 = 35

bar {Y_2} = 1.43

s_2 = 0.22

ANSWER:

Step 1 of 3

Because the samples are independent and large , we can use Large - Sample  - Level Hypothesis Tests.

Add to cart


Study Tools You Might Need

Not The Solution You Need? Search for Your Answer Here:

×

Login

Login or Sign up for access to all of our study tools and educational content!

Forgot password?
Register Now

×

Register

Sign up for access to all content on our site!

Or login if you already have an account

×

Reset password

If you have an active account we’ll send you an e-mail for password recovery

Or login if you have your password back