Question
Could you please show me your calculation ? A survey company wants to determine the mean income of middle level employees in the retail industry.
Could you please show me your calculation ?
A survey company wants to determine the mean income of middle level employees in the retail industry. A random sample of 500 employees reveals a sample mean of $5500. The standard deviation of this population is $2700. The company would like answers to the following questions:
a. What is the population mean? What is a reasonable value to use as an estimate of the population mean?
b. What is a reasonable range of values for the population mean, state any assumptions? (3 marks)
c. What do these results mean?
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