This WHOLE Question must be written using rStudio

For this assignment, you will create and compare two graphics that address the primary question for Project One, namely: "Does limiting user posts increase 7-day retention when compared to the unlimited posting model?" Since both variables (`retention_7` and `version`) are categorical, you might consider creating a bar plot (stacked, side-by-side, or segmented) or a mosaic plot, but you are not limited to these options. Your plots should be presentation-ready, not only for your supervisor but also company leadership. This includes appropriate labels, titles, themes, etc. After creating the two plots, comment briefly on which plot is more interpretable and better represents the data and why you feel it does so.

The Data and The Questions

You are working as a data scientist for a social media startup company. The platform allows users to post text and images, viewable by thousands of other users. In an effort to drive continued engagement on the platform, the company leadership is considering changing its current model, where users can upload an unlimited number of posts, to a more limited model, where users can only make a small number of posts per day. The company leadership believes that such a change would increase the perceived quality of content, thus encouraging users to continue using the platform.

In order to determine whether this change has a positive effect on engagement, a collection of new users were randomly assigned to one of the two models, either unlimited or limited posting. The following information was recorded for each of these new users:

1. `userid`: numeric; unique user identification number
2. `site_visits_7`: numeric; the number of site visits in the first 7 days after registering
3. `retention_1`: logical; whether the user accessed the platform one day after registering
4. `retention_7`: logical; whether the user accessed the platform 7 days after registering
5. `version`: character; which posting model was assigned to the user
6. `day_of_week`: character; day of week when user registered

The data can be found in the file `platform_retention.csv. The primary metric of interest in this study is 7-day retention.The primary question of interest is whether limiting user posts increases 7-day retention when compared to the unlimited posting model.However, company leadership also recognizes that changing the posting model for existing users may have negative effects on retention for those users. As such, your supervisor has asked you to avoid claiming a significant improvement unless the data strongly supports the claim, both in statistical and practical significance.

Here is what platform_retention.csv looks like:

userid	site_visits_7	retention_1	retention_7	version	day_of_week
1711136	15	FALSE	FALSE	unlimited	Saturday
2964858	18	TRUE	FALSE	unlimited	Thursday
3433251	19	FALSE	FALSE	unlimited	Thursday
8452399	23	TRUE	TRUE	unlimited	Sunday
2854126	27	TRUE	TRUE	unlimited	Friday
2209313	23	TRUE	FALSE	unlimited	Thursday
4386206	13	TRUE	FALSE	unlimited	Friday
2475965	17	FALSE	FALSE	unlimited	Monday
5360385	24	TRUE	FALSE	unlimited	Monday
9171008	17	TRUE	TRUE	unlimited	Sunday
3747153	25	FALSE	FALSE	unlimited	Thursday
5584591	21	FALSE	FALSE	unlimited	Monday
9308466	27	TRUE	FALSE	unlimited	Sunday
4912334	17	FALSE	FALSE	unlimited	Saturday
5402319	22	FALSE	FALSE	unlimited	Thursday
2165188	16	FALSE	TRUE	unlimited	Friday
7203436	18	TRUE	FALSE	unlimited	Sunday
4093021	24	FALSE	FALSE	unlimited	Tuesday
7491353	13	FALSE	FALSE	unlimited	Monday
8082559	25	NA	NA	unlimited	Monday
224388	25	FALSE	FALSE	unlimited	Monday
6491807	18	FALSE	FALSE	limited	Tuesday
2302174	17	TRUE	FALSE	unlimited	Tuesday
7810742	28	FALSE	FALSE	unlimited	Tuesday
5970580	16	TRUE	FALSE	unlimited	Sunday
6053011	15	FALSE	FALSE	unlimited	Monday
6807369	24	NA	NA	unlimited	Thursday
2807863	17	FALSE	FALSE	unlimited	Monday
1703365	20	FALSE	TRUE	unlimited	Wednesday
3318235	27	FALSE	FALSE	unlimited	Monday
5102107	12	TRUE	FALSE	unlimited	Wednesday
8273320	23	FALSE	FALSE	unlimited	Sunday
5937557	21	FALSE	FALSE	unlimited	Friday
6060402	25	FALSE	FALSE	unlimited	Tuesday
1467045	17	FALSE	FALSE	unlimited	Wednesday
7074997	19	FALSE	FALSE	unlimited	Saturday
4823328	16	TRUE	FALSE	unlimited	Monday
981047	26	TRUE	FALSE	unlimited	Sunday
3533785	16	TRUE	FALSE	unlimited	Wednesday
8801315	23	FALSE	FALSE	unlimited	Sunday
7983687	24	FALSE	FALSE	unlimited	Tuesday
1906184	19	FALSE	FALSE	unlimited	Monday
6133236	23	FALSE	FALSE	unlimited	Saturday
8884908	19	TRUE	FALSE	unlimited	Tuesday
7522391	25	FALSE	FALSE	unlimited	Friday
4816064	16	FALSE	FALSE	unlimited	Tuesday
3055424	24	TRUE	FALSE	unlimited	Friday
3719801	14	TRUE	FALSE	unlimited	Sunday
3697758	17	TRUE	FALSE	unlimited	Sunday