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OpenStudy (anonymous):
The length of human pregnancy is normally distributed with a mean of 280 days and a standard deviation of 10 days, so X ~ N(280, 10). A randomly selected woman’s pregnancy lasted 263 days. What z-score corresponds with this data value, and what does the z-score indicate?
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OpenStudy (kropot72):
Do you know the formula to find the z-score?
OpenStudy (kropot72):
@onmypagrind Are you there?
OpenStudy (anonymous):
i got thanks
OpenStudy (kropot72):
np
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