Question: Air samples data for Exercises 12.5 and 12.7. Data are suspended particulate matter in air samples (g/m3). Data are fictitious and are stored online in

“Air samples data” for Exercises 12.5 and 12.7. Data are suspended particulate matter in air samples

(μg/m3).

Data are fictitious and are stored online in the file AIRSAMPLES.SAV.

(a) Create back-to-back stemplots of data from these sites. Discuss the results.

(b) Calculate group means and standard deviations.

(c) Summarize your graphical and numerical findings.

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