The mean weight of newborn babies in a Long Island Community is 7.5 lbs. with a...

The mean weight of newborn babies in a Long Island Community is 7.5 lbs. with a standard deviation of 1.4 lbs. What is the probability that a random sample of 49 babies has a mean weight of at least 7.2 lbs?

Expert Solution

µ = 7.5

sd = 1.4

n = 49

= P(Z > -1.5)

= 1 - P(Z < -1.5)

= 1 - 0.0668

= 0.9332

orchestra answered 2 years ago

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