Suppose that a popular food delivery app, "DeliverEat," wishes to test a new feature on their platform. They want to roll out this feature to a random subset of\ their restaurant partners (restaurants that have partnered with DeliverEat to offer food delivery services).\ They plan to implement this new feature for 30 days and then compare the restaurant performance in the groups that received the feature with those that did not.\ They are considering various sampling methods. For Parts (a) to (d), what type of sample is obtained using each of the following sampling methods?\ ### Part (a) [1 mark]\ Method (a): DeliverEat creates a registration page on their platform where any restaurant partner can voluntarily sign up for the new feature, and those who sign\ up will be automatically included in the program. What type of sample is this?

Suppose that a popular food delivery app, "DeliverEat," wishes to test a new feature on their platform. They want to roll out this feature to a random subset of their restaurant partners (restaurants that have partnered with DeliverEat to offer food delivery services). They plan to implement this new feature for 30 days and then compare the restaurant performance in the groups that received the feature with those that did not. They are considering various sampling methods. For Parts (a) to (d), what type of sample is obtained using each of the following sampling methods? \#\#\# Part (a) [1 mark] Method (a): DeliverEat creates a registration page on their platform where any restaurant partner can voluntarily sign up for the new feature, and those who sign up will be automatically included in the program. What type of sample is this