The average salary for nurses was reported to be $54,574. A random sample of 1000 nurses yielded a mean salary of $56,300 with a standard deviation of $6500. Using the 2.5% significance level can you conclude that the current mean salary for nurses exceeds $54,574? State
The average salary for nurses was reported to be $54,574. A random sample of 1000 nurses yielded a
mean salary of $56,300 with a standard deviation of $6500. Using the 2.5% significance level can you
conclude that the current mean salary for nurses exceeds $54,574?
State the hypotheses_________________________________________________________________
Will you use z or t? ________ Why? ______________________________________________________
Describe your test in terms of the sampling distribution. A bell curve is a great way to visualize it!
p-value approach
What will prompt you to reject H0?
_____________________________________
Calculate the Test Statistic:
What is the p-value? _____________________
critical value approach
What is the ‘critical’ z or t value? ___________
What will prompt you to reject H0?
_____________________________________
Calculate the Test Statistic:
Evaluate the results.
Make the appropriate comparison: _____________________________________________________
Do you reject or fail to reject H0? _________________________
Conclusion (in words): ______________________________________________________________
_________________________________________________________
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