1. The foundation for a building is designed to rest on 100 piles based on the individual pilecapacity of 80 tons. Nine test piles were driven at random locations into the supporting soil stratumand loaded until failure of each pile occurred. The results are given in Table 1:Table 1 Capacity of each test pileTest Piles Pile Capacity (tons)18227539590458892778885980a. Estimate the mean and standard deviation of the individual pile capacity to be used at thesite.b. At the 5% significance level, should the piles be accepted based on the results of the ninetest piles? That is, perform a one-sided hypothesis test, with the null hypothesis that themean pile capacity is 80 tons.c. Establish the 95% confidence interval for the mean pile capacity, assuming that thestandard deviation of the population is known, o = s.d. Determine the 95% confidence interval for the mean pile capacity in the basis of unknownvariance.

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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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