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Mathematics, 02.11.2019 05:31 ITSFreeBird
As part of a study of the treatment of anemia in cattle, researchers measured the concentration of selenium in the blood of 36 cows who had been given a dietary supplement of selenium (2 mg/day) for one year. the cows were all the same breed and had all borne their first calf during the year. the mean selenium concentration was 6.21 μg/dl and the standard deviation was 1.84 μg/dl.16 construct a 95% confidence interval for the population mean.
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