Let's say my data is like this
Subscription rate of Apple user is 3/7 = 42.8%
Subscription rate of Android user is 4/10 = 40.0%
Subscription rate in population is 11/24 = 45.8%
How can I formulate and test the hypothesis that subscription rate of Apple user is statistically different (or not) from Android users and different (or not) from the population ?
t-test and ANOVA are working for difference in mean, yet I am not sure how do we answer the question of "statistically different (or not)" for other custom formulas