Question: The article A Method for the Estimation of Alcohol in Fortified Wines Using Hydrometer Baumé and Refractometer Brix (Amer. J. of Enol. and Vitic., 2006:

The article "A Method for the Estimation of Alcohol in Fortified Wines Using Hydrometer Baumé and Refractometer Brix" (Amer. J. of Enol. and Vitic., 2006: 486-490) gave duplicate measurements on distilled alcohol content (%) for a sample of 35 port wines. Here are averages of those duplicate measurements:

Use the Ryan-Joiner test to decide at significance level .05 whether a normal distribution provides a plausible model for alcohol content.

15.30 16.20 16.35 17.15 17.48 17.73 17.75 17.85 18.00 18.68 18.82 18.85 19.03 19.07 9.08 19.17 19.20 19.20 19.33 19.37 19.45 9.48 19.50 19.58 19.60 19.62 19.90 19.97 20.00 20.05 21.22 22.25 22.75 23.25 23.78

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