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EXAMPLE: You are investigating how the number of coffees bought per month differs based on how...

EXAMPLE:

You are investigating how the number of coffees bought per month differs based on how many months someone has been a nurse. The population mean for all nurses in the hospital was 60. and the standard deviation was 8. A sample of 20 randomly selected nurses from one unit had a mean of 86.

The example is appropriate because it is comparing the mean number of coffees bought by a single sample of nurses on one unit to the mean number bought by the hospital population of nurses.

c) Calculate both the 99% confidence interval and effect size for your example, showing your work for each.

Math   Statistics-And-Probability   
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