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.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.6: Summarizing Categorical Data

Problem 10CYU

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