7: A cement factory has two lines. Each line is operating separately. If the production properties (average and standard deviation of compressive strength) are as shown in table below: 1) determine the best line, 2) find the 95% confidence interval for the variance and standard deviation if the variance is two time than the variance given (assume n = 15 for both lines).

7: A cement factory has two lines. Each line is operating separately. If the production properties (average and standard deviation of compressive strength) are as shown in table below: 1) determine the best line, 2) find the 95% confidence interval for the variance and standard deviation if the variance is two time than the variance given (assume n = 15 for both lines).

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Please help solve these for my final preparation.
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