Question

In: Statistics and Probability

In a particular year, registered nurses earned an average annual salary of $52,330. A survey was...

In a particular year, registered nurses earned an average annual salary of $52,330. A survey was conducted with 45 nurses from a particular state to determine if the annual salary is higher than $52,330 for that state's nurses. The sample average was $62,979 with a sample standard deviation of $7,489. Conduct a hypothesis test at the 5% level.
Note: If you are using a Student's t-distribution for the problem, you may assume that the underlying population is normally distributed. (In general, you must first prove that assumption, though.)

What is the test statistic? t= ?

Sketch a picture of this situation. Label and scale the horizontal axis and shade the region(s) corresponding to the p-value.

Solutions

Expert Solution


Related Solutions

The average annual number of jobs available for registered nurses is 103935 if we assume a...
The average annual number of jobs available for registered nurses is 103935 if we assume a normal distribution with a standard deviation of 8039 find the probability there will be between 102935 and 104085 nursing jobs available
According to the Bureau of Labor Statistics, the mean salary for registered nurses in Kentucky was...
According to the Bureau of Labor Statistics, the mean salary for registered nurses in Kentucky was $55,718. The distribution of salaries is assumed to be normally distributed with a standard deviation of $5,769. Someone would like to determine if registered nurses in Ohio have a greater average pay. To investigate this claim, a sample of 162 registered nurses is selected from the Ohio Board of Nursing, and each is asked their annual salary. The mean salary for this sample of...
It is widely believed that there is a shortage of registered nurses. Is there? There are...
It is widely believed that there is a shortage of registered nurses. Is there? There are nurses in the DC-Maryland-Northern Virginia area who cannot find work. If so, what is the major contributory factor (recruitment, retention, other)?
Ms. Gomez earned a $91,250 salary, and Mr. Hill earned a$171,000 salary. Neither individual had...
Ms. Gomez earned a $91,250 salary, and Mr. Hill earned a $171,000 salary. Neither individual had any other income, and neither can itemize deductions. Assume the taxable year is 2020. Use Individual Tax Rate Schedules and Standard Deduction Table.Required: Compute Ms. Gomez and Mr. Hill’s combined tax if they file as single individuals.Compute Ms. Gomez and Mr. Hill’s tax if they are married and file a joint return.
Ms. Gomez earned a $91,250 salary, and Mr. Hill earned a $171,000 salary. Neither individual had...
Ms. Gomez earned a $91,250 salary, and Mr. Hill earned a $171,000 salary. Neither individual had any other income, and neither can itemize deductions. Assume the taxable year is 2019. Use Individual Tax Rate Schedules and Standard Deduction Table. A) Compute Ms. Gomez and Mr. Hill’s combined tax if they file as single individuals. B) Compute Ms. Gomez and Mr. Hill’s tax if they are married and file a joint return.
Ms. Gomez earned a $91,250 salary, and Mr. Hill earned a $171,000 salary. Neither individual had...
Ms. Gomez earned a $91,250 salary, and Mr. Hill earned a $171,000 salary. Neither individual had any other income, and neither can itemize deductions. Assume the taxable year is 2019. Use Individual Tax Rate Schedules and Standard Deduction Table. 1. Compute Ms. Gomez and Mr. Hill’s combined tax if they file as single individuals. 2. Compute Ms. Gomez and Mr. Hill’s tax if they are married and file a joint return.
Nursing "Shortages": Monopsony Power in the Market for Registered Nurses?
Nursing "Shortages": Monopsony Power in the Market for Registered Nurses?
Nursing "Shortages": Monopsony Power in the Market for Registered Nurses?
Nursing "Shortages": Monopsony Power in the Market for Registered Nurses?
1. A survey of 35 accountants shows the average salary is $60,000 with a population std...
1. A survey of 35 accountants shows the average salary is $60,000 with a population std deviation of $8,000. a) what is a 95 % confidence interval of the true mean of the population.? b) What is the margin of error ? 2. The average time to be served at a diner is 10 minutes with a standard deviation of 3 minutes based on a survey of 20 customers. a) what is a 99 % confidence interval of the true...
According to a national business travel association a 2010 survey, the average salary of a travel...
According to a national business travel association a 2010 survey, the average salary of a travel management professional is $96,850. Assume that the standard deviation of such salaries is $30,000. Consider a random sample of 50 travel management professionals and let Xbar represent the mean salary for the sample. A. What is u xbar. B. What is Standard deviation of x bar. C. Describe the shape of the distribution. D. Find the z-score for the value of xbar= 89,500 E....
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT