Exercise

Setting up conversion indexes

Now that you've determined that language is, in fact, the issue with House Ads conversion, stakeholders need to know how many subscribers they lost as a result of this bug.

In this exercise, you will index non-English language conversion rates against English conversion rates in the time period before the language bug arose.

Instructions

100 XP

Create a new DataFrame, house_ads_bug, that contains only the rows from house_ads with 'date_served' prior to '2018-01-11'.
Use your conversion_rate() function on the house_ads_bug DataFrame and the 'language_displayed' column.
Using the appropriate row, divide the Spanish, Arabic and German columns of lang_conv by the English column.