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The legal limit for the amount of suspended solids discharged into rivers is 60mg/liter/day. A study of water samples taken from discharges at a phosphate mine reveals that, over a long period, the average daily discharge of suspended solids is 48mg per litre, but that from day to day the discharges are variables. In order to estimate the variability of the discharges between days, a random sample of 20 days was taken and the discharges were measured. In this sample, the variance was 39(mg/l)2 We want to give an interval estimate at 90%

The legal limit for the amount of suspended solids discharged into rivers is 60mg/liter/day. A study of water samples taken from discharges at a phosphate mine reveals that, over a long period, the average daily discharge of suspended solids is 48mg per litre, but that from day to day the discharges are variables. In order to estimate the variability of the discharges between days, a random sample of 20 days was taken and the discharges were measured. In this sample, the variance was 39(mg/l)2 We want to give an interval estimate at 90%

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
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9. The legal limit for the amount of suspended solids discharged into rivers is 60mg/liter/day. A study of water samples taken from discharges at a phosphate mine reveals that, over a long period, the average daily discharge of suspended solids is 48mg per litre, but that from day to day the discharges are variables. In order to estimate the variability of the discharges between days, a random sample of 20 days was taken and the discharges were measured. In this sample, the variance was 39(mg/l)2 We want to give an interval estimate at 90%

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