Transform the following lengths of pregnancy into z-scores: a. 275 days b. 280 days c. 265 days

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Transform the following lengths of pregnancy into z-scores:

a. 275 days

b. 280 days

c. 265 days

d. 286 days

e. 260 days A study of more than 1,000 pregnant women in India found the length of pregnancy was normally distributed, with a mean (μ) of 272 days (about 9 months) and a standard deviation (σ) of 9 days (Bhat & Kushtagi, 2006).

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