Question

Scientists at GlaxoSmithKline Medicines Research Center used high-performance liquid chromatography (HPLC) to determine the amount of drug in a tablet produced by the company (Analytical Chemistry, Dec. 15, 2009). Drug concentrations measured as a percentage for 50 randomly selected tablets are listed in the accompanying table and saved in the DRUGCON file.
a. Descriptive statistics for the drug concentrations are shown at the top of the accompanying SPSS printout. Use this information to assess whether the data are approximately normal.
b. An SPSS normal probability plot is shown above. Use this information to assess whether the data are approximately normal.


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  • CreatedMay 20, 2015
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