101A_homework_two_feb_22_11 - Statistics 101A Homework 2...

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Statistics 101A Homework 2 Winter 2011 Due Date: Wednesday February 22 nd 2011 Do this as a group and turn in a single answer Question one: At a major psychiatric hospital, they want to examine the effect of two classes of medication ( TCA or tricyclic and SSRI , Selective Serotonin Reuptake Inhibitor) on the treatment of depression among elderly (patients over the age of 60) and younger adults (patients between the age of 20 and 30). There are 15 TCA type and 15 SSRI type of pills for the treatment of depression. They randomly choose three TCA and three SSRI pills from the list of 15. 180 sixty year old patients and120 twenty to thirty year old patients volunteered to participate in the study. They plan to use the Beck Depression scale for measuring the level of depression among the patients. Suppose that you were the statistician working for this hospital. Given the above information, answer the following questions: a) How would you go about assigning the subjects to the different pills? b) Look up the Beck Depression Scale on the Internet and write a line or two about it addressing what attributes it measures. Does it yield qualitative or quantitative data? c) What data should they collect on the patients? d) What is the outcome variable and how should it be computed? e)
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101A_homework_two_feb_22_11 - Statistics 101A Homework 2...

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