Answer:
first one should be SAS
second one should be the third choice
Answer: C. 
Step-by-step explanation:
The confidence interval for difference of two population mean is given by :-

Given : Level of significance : 
Then , significance level : 
Critical value : 


Hence, a 99% confidence interval for the difference between the mean wait times of everyone who rode both rides 
This equals 365 i know that is not what you ask but this is what i know
Answer:
the answer is 3
Step-by-step explanation:
11-8=3
17-11=6
6/2=3