As the product manager responsible for Facebook's newsfeed, your task is to increase the number of posts users see per day. To test this, the company conducted an A/B test with a randomized 1% sample of the population. Which metrics would be affected by this change, and what type of data should you anticipate as a result?

CQ:

1. What are we testing -> more posts from people and fewer ads

2. Platform specific - web or app -> agnostic

3. Any particular geography we are focussing on -> agnostic

4. Any specific metric we are targeting to inc the no of posts -> lets say 5% in 1 month

Metrics for the A/B test:

1. Avg session length for the control group vs test group

2. Avg no of posts seen per session for the control group vs test group

3. Measure reaction:

   1. Avg no of likes made in the test duration for the control group vs test group

   2. Avg no of comments made in the test duration for the control group vs test group

   3. Avg no of friends made in the test duration for the control group vs test group

Guard Rail Metrics:

1. Impact on retention: % churn rate for the control group vs test group

2. Revenue per 1000 impressions for the control group vs test group