The article "Gas Cooking, Kitchen Ventilation, and Exposure to Com-bustion Products" reported that for a sample of 50 kitchens with gas cooking appliances monitoredduring a one-week period, the sample mean CO₂ level (ppm) was 654.16, and the sample standarddeviation was 164.43.(a) Calculate and interpret a 95% confidence interval for true average CO₂ level in the populationof all homes from which the sample was selected.(b) Suppose the investigators had made a rough guess of 175 for the value of s before collecting data.What sample size would be necessary to obtain an interval width of 50 ppm for a confidencelevel of 95%?

given that,sample mean, x =654.16standard deviation, s =164.43

Answered: The article "Gas Cooking, Kitchen…

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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