The following table was presented in an article summarizing a study to compare a new drug to a standard drug and to a placebo.   Characteristic* New Drug Standard Drug Placebo p Age, years 45.2 (4.8) 44.9 (5.1) 42.8 (4.3) 0.5746 % Female 51% 55% 57% 0.0635 Annual Income, $000s 59.5 (14.3) 63.8 (16.9) 58.2 (13.6) 0.4635 % with Insurance 87% 65% 82% 0.0352 Disease Stage       0.1261   Stage I 35% 18% 33%     Stage II 42% 37% 47%     Stage III 23% 51% 20%   *Table entries and Mean (SD) or %   Are there any statistically significant differences in the characteristics shown among the treatments? Justify your answer

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The following table was presented in an article summarizing a study to compare a new drug to a standard drug and to a placebo.

 

Characteristic*

New Drug

Standard Drug

Placebo

p

Age, years

45.2 (4.8)

44.9 (5.1)

42.8 (4.3)

0.5746

% Female

51%

55%

57%

0.0635

Annual Income, $000s

59.5 (14.3)

63.8 (16.9)

58.2 (13.6)

0.4635

% with Insurance

87%

65%

82%

0.0352

Disease Stage

 

 

 

0.1261

  Stage I

35%

18%

33%

 

  Stage II

42%

37%

47%

 

  Stage III

23%

51%

20%

 

*Table entries and Mean (SD) or %

 

Are there any statistically significant differences in the characteristics shown among the treatments? Justify your answer

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