Question

An article considered various issues associated with determining endotoxin concentration. The following data on concentration (EU/mg) In settled dust for one sample of urban homes and another of farin homes was kindly supplied by the authors of the article. U: F: 6.0 4.0 5.0 14.0 11.0 11.0 33.0 4.0 9.0 9.0 5.0 8.0 84.0 4.0 18.0 20.0 35.0 5.0 17.0 8.9 23.0 21.0 9.2 3.0 2.0 0.3 x2 = 10,735 for the (a) Determine the value of the sample standard deviation for each sample. (Hint: x; = 241.0 for the urban sample and 128.4 for the farm sample, and urban sample and 1617.94 for the farm sample.] (Round your answers to two decimal places.) urban-settling S = farm-settling 5 = Interpret these values. The endotoxin concentration In an urban home typically devlates from the mean by an amount that is --Select-- the endotoxin concentration in a farm home typically deviates from the mean by an amount that is --Select-- the average endotoxin concentration In urban homes, and the average endotoxin concentration in farm homes. Contrast variability in the two samples. The variability In endotoxin concentration is similar in urban homes than in farm homes. The variability In endotoxin concentration is far greater in urban homes than in farm homes. The variability in endotoxin concentration is far less in urban homes than in farm homes. (b) Compute the fourth spread for each sample and compare. Do the fourth spreads convey the same message about variability that the standard deviations do? Explain. Yes, The fourth spreads do communicate the same message as the standard deviations did. No, The fourth spreads do not communicate the same message as the standard deviations did.

Answer 1

Hi Dear,
I have given my 100% to solve your problem.
So, please help me out by just thumbs up.
Thank you, so much

(a) Urban settings - 23.36 farm -setting S = 5.86 The endotoxin concentration in an urban homes typically devicate from the mean by an amount is 23.36 the average endotoxin concentration in urbon homes & the endotoxinoconcentration in a farm house typleally deviates from the mean by an amount 5.86 the average endo toxin concentration in farm house. 6 The variablity in endotoxin concentration is deur greater in urban house than in o form house (6) yes The fourth spread eo communicate the I same message as the standard deviation dida