{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

hw10 - Section 3.1#2#4#2 With this data the relationship...

Info icon This preview shows pages 1–5. Sign up to view the full content.

View Full Document Right Arrow Icon
Section 3.1: #2 #4 #2
Image of page 1

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
With this data the relationship between the age of the lawn mower and its NOx emissions seems somewhat dubious. We certainly do not see any pattern such as positive or negative relationships between the two variables. Thus, we claim that Age is not a particularly useful predictor of NOx emission.
Image of page 2
#4. a. It is seen that both of the BOD mass loading and the BOD mass removal have outliers. BOD mass loading is negatively skewed and BOD mass removal is positively skewed.
Image of page 3

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
b. Large values of y, which is the BOD mass loading tend to, associated with high value of x, which is the BOD mass removal, a strong positive linear relationship. Furthermore, the two variables appear to be pretty much linearly related, although some points would be spread out about the straight line drawn through the plot. In addition, there are two points that are very far away from the other points, though they are still correlated.
Image of page 4
Image of page 5
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}