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A sleep time of 15.9 hours per day for a newborn baby is at the percentile of the distribution of sleep times for all newborn babies. Assuming the distribution is normal with a standard deviation of 0.5 hour, approximately what is the meantime, in hours per day, for newborn babies?
A. 15.1
B. 15.3
C. 16.3
D. 16.5
E. 16.7
1 Approved Answer
Jones G
3Ratings (16 Votes)
The 10th percentile of a normal distribution is approximately 1.28 standard deviations below the...
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