Number of letters in string Reaction time in milliseconds

6 930

5 900

3 740

5 820

4 850

4 720

3 690

6 990

4 810

3 830

6 880

5 950

a.Find the regression equation for predicting reaction time from the number of letters in the string?

b.How many milliseconds are added to the reaction time for each letter added to the string?

c.What reaction time would you predict for a string with seven letters?