13. The following table was presented in an article summarizing a study to compare a new drug to astandard drug and to a placebo.Standard DrugNew DrugPlaceboCharacteristic*42.8 (4.3)Age, years45.2 (4.8)44.9 (5.1)0.5746% Female51%55%57%0.163559.5 (14.3)63.8 (16.9)58.2 (13.6)Annual Income, $000s0.463565%%with Insurance87%82%0.0352Disease StageStageStage IIStage IIITable entries and Mean (SD) or %0.026133%35%18%42%37%47%23%51%20%a) Are there any statistically significant differences in the characteristics shown among the treatments?Justify your answer.b) Consider the test for differences in age among treatments. Write the hypotheses and the formula of thetest statistic used (No computations required formula only)c) Consider the test for differences in insurance coverage among treatments. Write the hypotheses andthe formula of the test statistic used (No computations required formula only)d) Consider the test for differences in disease stage among treatments. Write the hypotheses and theformula of the test statistic used (No computations required formula only)

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Asked Dec 4, 2019
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Question 13, JUST LETTER D. I have the rest. Thank you!

13. The following table was presented in an article summarizing a study to compare a new drug to a
standard drug and to a placebo.
Standard Drug
New Drug
Placebo
Characteristic*
42.8 (4.3)
Age, years
45.2 (4.8)
44.9 (5.1)
0.5746
% Female
51%
55%
57%
0.1635
59.5 (14.3)
63.8 (16.9)
58.2 (13.6)
Annual Income, $000s
0.4635
65%
%with Insurance
87%
82%
0.0352
Disease Stage
Stage
Stage II
Stage III
Table entries and Mean (SD) or %
0.0261
33%
35%
18%
42%
37%
47%
23%
51%
20%
a) Are there any statistically significant differences in the characteristics shown among the treatments?
Justify your answer.
b) Consider the test for differences in age among treatments. Write the hypotheses and the formula of the
test statistic used (No computations required formula only)
c) Consider the test for differences in insurance coverage among treatments. Write the hypotheses and
the formula of the test statistic used (No computations required formula only)
d) Consider the test for differences in disease stage among treatments. Write the hypotheses and the
formula of the test statistic used (No computations required formula only)
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13. The following table was presented in an article summarizing a study to compare a new drug to a standard drug and to a placebo. Standard Drug New Drug Placebo Characteristic* 42.8 (4.3) Age, years 45.2 (4.8) 44.9 (5.1) 0.5746 % Female 51% 55% 57% 0.1635 59.5 (14.3) 63.8 (16.9) 58.2 (13.6) Annual Income, $000s 0.4635 65% %with Insurance 87% 82% 0.0352 Disease Stage Stage Stage II Stage III Table entries and Mean (SD) or % 0.0261 33% 35% 18% 42% 37% 47% 23% 51% 20% a) Are there any statistically significant differences in the characteristics shown among the treatments? Justify your answer. b) Consider the test for differences in age among treatments. Write the hypotheses and the formula of the test statistic used (No computations required formula only) c) Consider the test for differences in insurance coverage among treatments. Write the hypotheses and the formula of the test statistic used (No computations required formula only) d) Consider the test for differences in disease stage among treatments. Write the hypotheses and the formula of the test statistic used (No computations required formula only)

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Expert Answer

Step 1

d).

 

 

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L Represents the mean of new drug, u, is the mean of standard drug and u is the mean of a placebo

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Step 2

The null and alternative hypot...

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H H At least one mean is diiferent from other

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