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The table below gives the two-way classification of 400 randomly selected persons based on their status as a smoker or a nonsmoker and on the number of visits they made to their physicians last year. Suppose you must test the hypothesis at 5% level of significance whether there is a relationship between smoking and visits to the physician. Status Visits to the Physician 0-1 2-4 >=5 Smoker 25 60 75 Nonsmoker 110 90 40 The expected frequencies will be: O a) 54, 44.81.90 and 70 O b) 54, 60. 81.90 and 69 Oc) 112, 100.90.81 and 69 O d) 69. 82.55.90 and 112

The table below gives the two-way classification of 400 randomly selected persons based on their status as a smoker or a nonsmoker and on the number of visits they made to their physicians last year. Suppose you must test the hypothesis at 5% level of significance whether there is a relationship between smoking and visits to the physician. Status Visits to the Physician 0-1 2-4 >=5 Smoker 25 60 75 Nonsmoker 110 90 40 The expected frequencies will be: O a) 54, 44.81.90 and 70 O b) 54, 60. 81.90 and 69 Oc) 112, 100.90.81 and 69 O d) 69. 82.55.90 and 112

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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The table below gives the two-way classification of 400 randomly selected persons based on their status as a smoker or a nonsmoker and on the number of visits they made to their physicians last year. Suppose you must test the hypothesis at 5% level of significance whether there is a relationship between smoking and visits to the physician. Status Visits to the Physician 0-1 2-4 >3D5 Smoker 25 60 75 Nonsmoker 110 90 40 The expected frequencies will be O a) 54, 44,81. 90 and 70 O b) 54, 60. 81. 90 and 69 Oc) 112, 100.90,81 and 69 Odi69.82. 55. 90 and 112
Transcribed Image Text:The table below gives the two-way classification of 400 randomly selected persons based on their status as a smoker or a nonsmoker and on the number of visits they made to their physicians last year. Suppose you must test the hypothesis at 5% level of significance whether there is a relationship between smoking and visits to the physician. Status Visits to the Physician 0-1 2-4 >3D5 Smoker 25 60 75 Nonsmoker 110 90 40 The expected frequencies will be O a) 54, 44,81. 90 and 70 O b) 54, 60. 81. 90 and 69 Oc) 112, 100.90,81 and 69 Odi69.82. 55. 90 and 112
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