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Author Question: A drug for treating depression patients is evaluated for effectiveness. Three treatment options ... (Read 101 times)

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Question 1

\(\style{font-family:Times New Roman;}{\overline x}\) is the:

second average of theith sample.


average value of the second sample.


second population mean.


second weighted sample average.



Question 2

A drug for treating depression patients is evaluated for effectiveness. Three treatment options exist: 20 mg, 10 mg, and placebo (20, 10, P). Twelve patients are randomly assigned to provide 4 patients for each level. The change in score from a common test designed to quantify depression was recorded for each patient. The ANOVA summary from the test appears below:

SourcedfSSMSFp
Factor2228.17114.0834.810.000
Error929.503.28

Total11257.67


Does it appear that the drug might be effective in changing depression level? Select the appropriate conclusion and reasoning.


No, the drug does not appear to have an effect on depression level because the test statistic is so large.


Yes, the drug (or perhaps the placebo) appears to have an effect on depression level because thep-value is essentially zero.


No, the drug does not appear to have an effect on depression level because thep-value is essentially zero.


The test is inconclusive and needs a multiple comparison of means procedure to be able to make any statement concerning the relationship between the drug/placebo and depression.



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Marked as best answer by xxxxxxxxxxxx on Feb 26, 2023

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xxxxxxxxxxxx

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Reply 2 on: Feb 26, 2023
Great answer, keep it coming :)


olderstudent

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Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

 

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