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The mean weight of 10 randomly newborn babies at a local hospital is 7.14 lbs and...

The mean weight of 10 randomly newborn babies at a local hospital is 7.14 lbs and
the standard deviation of 0.817 lbs. Assume the weight of newborn babies has
approximately normal distribution.
a. Find the margin of error for a confidence level of 90%.

b. Fill in the blanks in the following sentence.
% of all samples of size have sample means within of the
population mean.

c. Find the 90% confidence interval for the mean weight at this hospital.

Math   Statistics-And-Probability   
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