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Annual starting salaries for college graduates with degrees in business administration are generally expected to be between $30,000 and $45,000. Assume that a 95% confidence interval estimate of the population mean annual starting salary is desired. How large a sample should be taken if the desired margin of error is:
a. $500?
b. $200?
c. $100?
you work for a consumer watchdog publication and are testing the advertising claims of a light bulb manufacturer. the
What happens to the confidence interval and the power of the test at a particular point of interest
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the weather forecast for tomorrow indicates that there is a 70 chance that there will be a high wind speed. the
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