Refer to the Chemical Engineering Progress (Jan. 2005) study of the rate at which a spilled volatile liquid will spread across a surface, Exercise 11.26 and the data saved in the file. Find and interpret r and r2 for the simple linear regression y = mass of the spill and x = elapsed time of the spill.
Exercise 11.26
Refer to the Chemical Engineering Progress (Jan. 2005) study of the rate at which a spilled volatile liquid will spread across a surface. Exercise 2.128. Recall that a DuPont Corp. engineer calculated the mass (in pounds) of a 50-gallon methanol spill after a period of time ranging from 0 to 60 minutes. Do the data in the table below indicate that the mass of the spill tends to diminish as time increases? If so, how much will the mass diminish each minute?

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60778047620 19631000 226 28 30 35 40 45 50 5 60 64 34 04 47 94 44 98 55 741 Mo 666544333222 THE 4 6 8 12 14 16 18