Exercise

# Poisson confidence intervals

Using the previously fitted horseshoes crab model `sat ~ width`

analyze uncertainty of the coefficient estimates by computing the confidence intervals for \(\beta_1\) and the confidence intervals for the multiplicative effect on the mean.

The `model`

object and `crab`

dataset are preloaded in the workspace.

Instructions

**100 XP**

- Using the
`.conf_int()`

function extract the confidence intervals and save as model_ci. - Compute confidence intervals for the multiplicative effect on the mean.