Question: Recent research suggests that depression significantly increases the risk of

Recent research suggests that depression significantly increases the risk of developing dementia later in life (BBC News, July 6, 2010). In a study involving 949 elderly persons, it was reported that 22% of those who had depression went on to develop dementia, compared to only 17% of those who did not have depression.
a. Describe the relevant population and the sample.
b. Do the numbers 22% and 17% represent the population parameters or the sample statistics?


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  • CreatedJanuary 28, 2015
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