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Ryan, Engineer
Category: Calculus and Above
Satisfied Customers: 8838
Experience:  B.S. in Civil Engineering
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The manager of a fast-food restaurant wants to determine

Customer Question

the manager of a fast-food restaurant wants to determine whether the population mean waiting time to place an order has changes in the past month from its previous value of 3.7 minutes. A random sample of 64 orders shows a mean waiting time of 4.0 minutes. It is know from past experience that population standard deviation of waiting times is o=1.15minutes.
Formulate and test the appropriate hypotheses using the p-value approach. What is the p-value for the test? show the research firm reject the null hypothesis at a=0.05? what conclusion should they make?
Submitted: 4 months ago.
Category: Calculus and Above
Expert:  Ryan replied 4 months ago.


Thank you for using the site. I'll be happy to help you with this problem. I'll have a solution posted for you shortly.



Expert:  Ryan replied 4 months ago.

Hi again,

Here is the solution for the above problem.


Clicking the above link will take you to a page where you can download the solutions as a Word document. Please let me know if you have any difficulty accessing this file.

Please feel free to ask if you have any questions about this solution.



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