Internet Response Times. Use the following information for Exercises 45 and 46: The Web site www.internettrafficreport.com monitors Internet traffic worldwide and reports on the response times of randomly selected servers.

Question 9.242

46. On June 6, 2011, the Web site reported the following response times to Asia, in milliseconds:

61 32 50 73 51 42 55 65 59 57 76 77 67 71

The normal probability plot of the data is also shown. We want to perform a test.

  1. Are the conditions for performing the test satisfied? Explain how you know.
  2. Test, using level of significance , whether the population mean response time is less than 60 milliseconds.
  3. Explain why we can't use a test for this problem.
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