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
Answer: y = 3/2x + 1
Step-by-step explanation: For a perpendicular line, take the reciprocal of "m" and reverse the sign.
- 2/3 becomes +3/2
Then substitute the y and x values of the given coordinate into the equation and solve for "b"
y = mx + b
-2 = 3/2(-2) + b
-2 = -3 + b
-2 +3 = b
+1 = b Substitute for b in y = (3/2)x + 1
