Suppose a team of pedestrians takes a simple random sample of 100 babies. In this sample, the babies have a head circumference of 46.35 cm and a standard deviation of 1.1 cm. What percent of the time would a random sample of 100 babies a sample mean that is not in the 90% confidence interval?
A) 0%
B) 2.5%
C) 5%
D) 10%
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