Nationally, the ratio of nurses to students falls short of the recommended federal standard, according to the USA Today article “School nurses in short supply” (August 11, 2009). The recommendation from the Centers for Disease Control and Prevention (CDC) is 1 nurse per 750 students. Use the sample below from 38 randomly selected schools in the state of New York to test the statement “The New York mean number of students per school nurse is significantly higher than the CDC standard of 750.” Assume σ = 540
a. Describe the parameter of interest.
b. State the null and alternative hypothesis.
c. Calculate the value for z and find the p-value
d. State your decision and conclusion using a = 0.01

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