Question 1 1 Point What is the critical value t* for a 99% confidence interval based on a sample of size 13? A 3.06 B 2.68 C) 3.01 D 2.65 Question 2 1 Point One social media site recently released statistics they gathered on a sample of 33 science students in an exam period. They found that for this sample the average time spent on their website was 23.5 hrs/wk, with a standard deviation of 7.8 hrs/wk. Based on this sample, what is the 99% confidence interval of the mean time spent on the social media website? A (19.83,27.97) B (19.78,27.22) C (21.20,25.80) D (20.73,26.27) Question 3 1 Point What is the critical value t* for a 90% confidence interval based on a sample of size 5? A 2.13 B 2.02 C 1.48 D 1.53