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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 conclusion will be: O a) Since 2- 56.428 is not greater than xs = =0.103. we then reject the null hypothesis at 5% level of significance and conclude that smoking and visits to the physician are related. Ob) Since x2=56.428 is greater than os =0.103, we then fail to reject the null hypothesis at 5% level of %3D 95.2 significance and conclude that smoking and visits to the physician are related. Oc) Since x= 56.428 is greater than x os,=0.103. we then reject the null hypothesis at 5% level of significance and conclude that smoking and visits to the physician are not related. O d) Since x=56.428 is greater than xs =0.103, we then reject the null hypothesis at 5% level of significance .95,2 and conclude that smoking and visits to the physician are related.

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 conclusion will be: O a) Since 2- 56.428 is not greater than xs = =0.103. we then reject the null hypothesis at 5% level of significance and conclude that smoking and visits to the physician are related. Ob) Since x2=56.428 is greater than os =0.103, we then fail to reject the null hypothesis at 5% level of %3D 95.2 significance and conclude that smoking and visits to the physician are related. Oc) Since x= 56.428 is greater than x os,=0.103. we then reject the null hypothesis at 5% level of significance and conclude that smoking and visits to the physician are not related. O d) Since x=56.428 is greater than xs =0.103, we then reject the null hypothesis at 5% level of significance .95,2 and conclude that smoking and visits to the physician are related.

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 >=5 Smoker 25 60 75 Nonsmoker 110 90 40 The conclusion will be: a) Since 2 56.428 is not greater than 2 s =0.103. we then reject the null hypothesis at 5% level of 0.95.2 significance and conclude that smoking and visits to the physician are related. O b) Since x-= 56.428 is greater than xos ,=0.103, we then fail to reject the null hypothesis at 5% level of significance and conclude that smoking and visits to the physician are related. O c) Since x= 56.428 is greater than xos =0.103 we then reject the null hypothesis at 5% level of significance %3D 95.2 and conclude that smoking and visits to the physician are not related. O d) Since x-=56.428 is greater than s=0,103 , we then reject the null hypothesis at 5% level of significance 95.2 and conclude that smoking and visits to the physician are related.
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 >=5 Smoker 25 60 75 Nonsmoker 110 90 40 The conclusion will be: a) Since 2 56.428 is not greater than 2 s =0.103. we then reject the null hypothesis at 5% level of 0.95.2 significance and conclude that smoking and visits to the physician are related. O b) Since x-= 56.428 is greater than xos ,=0.103, we then fail to reject the null hypothesis at 5% level of significance and conclude that smoking and visits to the physician are related. O c) Since x= 56.428 is greater than xos =0.103 we then reject the null hypothesis at 5% level of significance %3D 95.2 and conclude that smoking and visits to the physician are not related. O d) Since x-=56.428 is greater than s=0,103 , we then reject the null hypothesis at 5% level of significance 95.2 and conclude that smoking and visits to the physician are related.
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