The data that we have needs to make sense and therefore you can perform certain sanity checks on them to ensure they are factually correct as well. Some sanity checks can be: Rating is between 1 and 5 ...

The following cell is not shown either in the book. It creates the images/end_to_end_project folder (if it doesn't already exist), and it defines the save_fig() function which is used through this ...

Posterior predictive checking plots did not show any implausible distributions (see Figure 3). If there is no null value in the 95% confidence interval of the beta parameter estimation, we consider it ...