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According to research conducted by the fictional agency entitled Birth Rate and Health Outcomes, a sample...

According to research conducted by the fictional agency entitled Birth Rate and Health Outcomes, a sample of 3,500 women who gave birth reported that the sample mean age of first-time mothers in the U.S. was 24 years old with a sample median age of 30 and a sample standard deviation of 3.35.

a. What is the point estimate of the population mean?  

b. Based on the limited information presented, is this distribution likely to be skewed right, left, or normal? Explain.

c. Compute the 75% confidence interval of the population mean and interpret it.

Math   Statistics-And-Probability   
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