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Ramar59
31.03.2020 •
Mathematics
Suppose the level of calcium in the blood in healthy young adults varies with mean about 9.6 milligrams per deciliter and standard deviation about σ = 0.3. A clinic in rural Guatemala measures the blood calcium level of 140 healthy pregnant women at their first visit for prenatal care. The mean is x = 9.67. Is this an indication that the mean calcium level in the population from which these women come differs from 9.6?
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Ответ:
B.
Step-by-step explanation:
3.7 × 30 = 111
then round down to 110