Problem 14

The scattlerplot looks fairly linear

Yes we can use linear model

-994Age+14301=Price

Yes, the scatterplot is suitably random

Problem 16

(-1175,-813.3)

We are 95% confident that the true slope is between these values.

Problem 23

If there is an assosiation, it’s very weak, since r squared is very small. However, we reject the null that the slope is zero since the p value is low. There may be a correlation, but it’s not significant.

Problem 25

Scatterplot is not linear, Historgram is not particularly unmodal or syyemtric, and residuals fan out violating the “plot thickens” condition.

Problem 33

33

Correlation in plot appears fairly weak, which might be a concern.

Yes, there is a relationship as our p values are below 1 meaning that these two things are related.

However, this relatioship is not particularly strong.

4.14+-1.7*1.28

We are 90% confident that the true value for our slope lies within the interval.