The accompanying data represent x = amount of catalyst added to accelerate a chemical reaction and y 5 resulting reaction time:
|
x
|
1
|
2
|
3
|
4
|
5
|
|
y
|
49
|
46
|
41
|
34
|
25
|
a. Calculate r. Does the value of r suggest a strong linear relationship?
b. Construct a scatterplot. From the plot, does the word linear provide the most effective description of the relationship between x and y? Explain.