A consumer advocate decided to investigate the average wait time for a table for one at two local restaurants.Eighteen customers were sent to each restaurant at the same randomly selected times and the times they waited for a table were recorded in minutes.The following sample data was obtained.
Find a 95% confidence interval for the difference,
-
,between the mean wait time at Restaurant A and the mean wait time at Restaurant B.
A)(-8.3,1.86)
B)(-1.86,8.3)
C)(-8.3,-1.86)
D)(-13.5,-10.28)
E)(10.28,13.5)

Question

A consumer advocate decided to investigate the average wait time for a table for one at two local restaurants.Eighteen customers were sent to each restaurant at the same randomly selected times and the times they waited for a table were recorded in minutes.The following sample data was obtained. 
Find a 95% confidence interval for the difference, 
- 
,between the mean wait time at Restaurant A and the mean wait time at Restaurant B.
A)(-8.3,1.86) 
B)(-1.86,8.3) 
C)(-8.3,-1.86) 
D)(-13.5,-10.28) 
E)(10.28,13.5)

Quizplus · Accepted Answer

The Answer of A consumer advocate decided to investigate the average wait time for a table for one at two local restaurants.Eighteen customers were sent to each restaurant at the same randomly selected times and the times they waited for a table were recorded in minutes.The following sample data was obtained. 
Find a 95% confidence interval for the difference, 
- 
,between the mean wait time at Restaurant A and the mean wait time at Restaurant B.
A)(-8.3,1.86) 
B)(-1.86,8.3) 
C)(-8.3,-1.86) 
D)(-13.5,-10.28) 
E)(10.28,13.5)

A Consumer Advocate Decided to Investigate the Average Wait Time