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Researchers have estimated that office workers in Germany receive an average of 15.0 fax messages per day. Assuming this finding to be based on a simple random sample of 80 German office workers, with a sample standard deviation of s = 3.5 messages, construct and interpret the 95% confidence interval for the population mean.
Given this confidence interval, would it seem very unusual if another sample of this size were to have a mean of 16.5 faxes?
Explain the various methodologies and applications relating to levels of measurement, central tendency, dispersion, and other key statistical metrics.
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A researcher hypothesizes that there will be a significant change in a student's fear of statistics following participation in an intervention designed to increase students' confidence in their ability to successfully complete a statistical course..
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