Modeling each auction type
You just saw that the opening bid price appeared not to affect the final sale price of Palm Pilots in the eBay auctions. Now let's look at what happens when you model the three auction types (3 day, 5 day, and 7 day) separately.
auctions is available.
This exercise is part of the course
Intermediate Regression with statsmodels in Python
Hands-on interactive exercise
Have a go at this exercise by completing this sample code.
# Fit linear regression of price vs. opening bid and auction type, with an interaction, without intercept
mdl_price_vs_both = ____
# See the result
print(mdl_price_vs_both.params)