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Mathematics, 27.09.2019 01:00, ZOE1000000
Scientists researching the effect of dietary supplements such as multivitamins and supplements of folic acid, magnesium or zinc on the health of elderly women followed 38,772 women, whose average age was 62 at the start of the study, over a period of 19 years and recorded the death rates of those who did and did not use dietary supplements. the researchers found that women using supplements were more likely than women who did not to have died during that period. write the hypotheses for testing if the proportion of women elderly women who use dietary supplements is different than those who do not.
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