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In the survey of a random sample of students at a university. A professor is interested in whether students who have watched TV ( group 1) in the past week study fewer hours on average per week than those who have not ( group 2). An analysis of the results produce the following information: TV n Mean SD (standard deviation) YES 40 12.72 6.44 NO 120 15.35 8.65 Which of the followin

In the survey of a random sample of students at a university. A professor is interested in whether students who have watched TV ( group 1) in the past week study fewer hours on average per week than those who have not ( group 2). An analysis of the results produce the following information: TV n Mean SD (standard deviation) YES 40 12.72 6.44 NO 120 15.35 8.65 Which of the followin

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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In the survey of a random sample of students at a university. A professor is interested in whether students who have watched TV (group 1) in the past week study fewer hours on average per week than those who have not ( group 2). An analysis of the results produce the following information: TV n Mean SD (standard deviation) YES 40 12.72 6.44 NO 120 15.35 8.65 Which of the following is the appropriate test statistics? O A. t= 12.72-15.35 (6.44)2, (8.65)2 45 125 O B. None of these OC. 12.72-15.35 t = (6.44)2, (8.65)2 +. 120 40 12.72-15.35 O D. t= V6.44+8.65 O E. t= 12.41-15.53 6.44 V 40 8.65 120
Transcribed Image Text:In the survey of a random sample of students at a university. A professor is interested in whether students who have watched TV (group 1) in the past week study fewer hours on average per week than those who have not ( group 2). An analysis of the results produce the following information: TV n Mean SD (standard deviation) YES 40 12.72 6.44 NO 120 15.35 8.65 Which of the following is the appropriate test statistics? O A. t= 12.72-15.35 (6.44)2, (8.65)2 45 125 O B. None of these OC. 12.72-15.35 t = (6.44)2, (8.65)2 +. 120 40 12.72-15.35 O D. t= V6.44+8.65 O E. t= 12.41-15.53 6.44 V 40 8.65 120
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