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3. The Australian Institute of Management wants to have information of the mean income of store managers in the retail industry. A random sample of
3. The Australian Institute of Management wants to have information of the mean income of store managers in the retail industry. A random sample of 36 managers reveals a sample mean of $49,270. The standard deviation of the population is $2,430. AIM would like to find out: - - - What is the population mean? What is a reasonable range of values for the population mean? How to interpret these values
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