According to the Bureau of Labor Statistics, the mean salary for registered nurses in Kentucky was $56,279. The distribution of salaries is assumed to be normally distributed with a standard deviation of $5,902. Someone would like to determine if registered nurses in Ohio have a greater average pay. To investigate this claim, a sample of 168 registered nurses is selected from the Ohio Board of Nursing, and each is asked their annual salary. The mean salary for this sample of 168 nurses is found to be $56,485.465. Describe the sampling distribution of the sample mean salary when samples of size 168 are selected. Mean (μ y-bar): _____ Standard Deviation (σ y-bar): _____ Shape: The distribution of y-bar is __________ (normally distributed/not normally distributed) because __________ (the population of salaries is NOT normally distributed/the sample size is large/the sample size is NOT large/the population of salaries is normally distributed) What conjecture has been made? The mean salary for registered nurses in Ohio is $56,485.465. The mean salary for registered nurses in Ohio is greater than $56,279. The mean salary for registered nurses in Ohio is greater than $56,485.465. The mean salary for registered nurses in Ohio is $56,279.
According to the Bureau of Labor Statistics, the
Describe the sampling distribution of the sample mean salary when samples of size 168 are selected.
Mean (μ y-bar): _____
Standard Deviation (σ y-bar): _____
Shape: The distribution of y-bar is __________ (normally distributed/not normally distributed) because __________ (the population of salaries is NOT normally distributed/the
What conjecture has been made?
- The mean salary for registered nurses in Ohio is $56,485.465.
- The mean salary for registered nurses in Ohio is greater than $56,279.
- The mean salary for registered nurses in Ohio is greater than $56,485.465.
- The mean salary for registered nurses in Ohio is $56,279.
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