=+13.70 ● The article “Improving Fermentation Productivity with Reverse Osmosis” (Food Technology [1984]: 92–96)

gave the following data (read from a scatterplot) on y 5 glucose concentration (g/L) and x 5 fermentation time

(days) for a blend of malt liquor.

x 1 2 3 4 5 6 7 8 y 74 54 52 51 52 53 58 71