Use the following information for questions:
In the survey of a random sample of students at a university, two questions were "How many hours per week do you usually study?" and "Have you smoked marijuana in the past six months?" An analysis of the results produced the following Minitab output:
-Which of the following is the appropriate unpooled test statistic for determining if there is a difference in average study hours per week for the two groups?
A) t =
B) t =
C) t =
D) t =

Question

Use the following information for questions:
In the survey of a random sample of students at a university, two questions were "How many hours per week do you usually study?" and "Have you smoked marijuana in the past six months?" An analysis of the results produced the following Minitab output: 
-Which of the following is the appropriate unpooled test statistic for determining if there is a difference in average study hours per week for the two groups?
A) t = 
B) t = 
C) t = 
D) t =

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The Answer of Use the following information for questions:
In the survey of a random sample of students at a university, two questions were "How many hours per week do you usually study?" and "Have you smoked marijuana in the past six months?" An analysis of the results produced the following Minitab output: 
-Which of the following is the appropriate unpooled test statistic for determining if there is a difference in average study hours per week for the two groups?
A) t = 
B) t = 
C) t = 
D) t =

Use the Following Information for Questions