Mathematics, 22.07.2020 17:01 sandygarcia65
According to the National Health Statistics Reports, the standard deviation of the weights of all one-year-old baby boys born in the U. S. is 5.3 pounds. A random sample of 360 one-year-old baby boys born in the U. S. had a mean weight of 25.5 pounds.
a) Construct a 90% confidence interval for the mean weight of all one-year-old baby boys in the U. S. Write a sentence that interprets this interval.
b) Should this confidence interval be used to estimate the mean weights of all one-year-old babies in the U. S.? Explain.
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