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Author Question: The sample size needed to estimate a population mean to within 50 units was found to be 97 . If the ... (Read 36 times) |
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In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.
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Normal urine is sterile. It contains fluids, salts, and waste products. It is free of bacteria, viruses, and fungi.
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Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.
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Aspirin may benefit 11 different cancers, including those of the colon, pancreas, lungs, prostate, breasts, and leukemia.
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Vaccines prevent between 2.5 and 4 million deaths every year.