Exercise

# Estimation with and without outlier

The data provided in this exercise (`hypdata_outlier`

) has an extreme outlier. A plot is shown of the dataset, and a linear regression model of `response`

versus `explanatory`

. You will remove the outlying point to see how one observation can affect the estimate of the line.

Instructions

**100 XP**

- Filter
`hypdata_outlier`

to remove the outlier. - Update the plot,
`p`

, to add another smooth layer (use`geom_smooth`

).- Like the other ribbon, the update should use the linear regression method, and not draw the ribbon.
- Unlike the other ribbon, the update should use the
`data = hypdata_no_outlier`

and be colored red. - For now, just use the smooth curve, and not the confidence bounds (
`se = FALSE`

).