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Answers for second Practice Exam

Answers for second Practice Exam - Answers Final Exam VA 1...

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Answers Final Exam VA 1. Test stat = -1.13.   At the 5% significance level, the sample data does not support the  professor’s claim that the mean time reported will be less than 60 seconds. 2. We are 95% confident that the true mean time reported by the students will be  somewhere between 55 seconds and 61 seconds. 3. Solution 1: Use a two-tailed t-test testing the mean = 98.6 vs. it does not = 98.6; the test  stat is t = -3.23, which will allow us to reject the null.  Thus the data does contradict the  status quo belief that the mean body temp is 98.6.
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