Mathematics, 17.07.2019 05:10 bikerhomie
The article “gas cooking, kitchen ventilation, and exposure to combustion products” reported that for a sample of 50 kitchens withgas cooking appliances monitored during a one-week period, the sample mean co2level(ppm) was 654.16, and the sample standard deviation was 164.43.(a) calculate and interpret a 95% confidence interval for true average co2level in thepopulation of all homes from which the sample was selected.(b) suppose the investigators had made a rough guess of 175 for the value ofsbeforecollecting data. what sample size would be necessary to obtain an interval widthof 50 ppm for a confidence level of 95%?
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The article “gas cooking, kitchen ventilation, and exposure to combustion products” reported that fo...
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