We're looking forward to seeing you at the S2 Week 4 workshops to discuss sampling distributions and confidence intervals. If you've not found it already, the task was released last week. Ideally you'd have prepared for the workshop - but if not it's still worth attending to discuss how to approach the problems.
We're giving solutions for the first 3 problems before the workshop so that you can spend the time in the workshop trying to decide whether any why your solutions are right. There are then the discussion questions for you to discuss.
Update, 8 Feb 2024: Here are the solutions to all the problems.