Question
A university surveyed recent graduates of the English Department for their starting salaries. Four hundred graduates returned the survey. The average salary was $25,000. The
A university surveyed recent graduates of the English Department for their starting salaries. Four hundred graduates returned the survey. The average salary was $25,000. The population standard deviation was $2,500.
a. What is the point estimate of the population mean?
b. What is the 95% confidence interval for the mean salary of all graduates from the English Department?
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Introductory Econometrics A Modern Approach
Authors: Jeffrey M. Wooldridge
4th edition
978-0324581621, 324581629, 324660545, 978-0324660548
