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Human oral normal body temperature is believed to be 98.6°
Chapter 9, Problem 75E(choose chapter or problem)
Problem 75E
Human oral normal body temperature is believed to be 98.6° F, but there is evidence that it actually should be 98.2° F [Mackowiak, Wasserman, Steven and Levine, JAMA (1992, Vol. 268(12), pp. 1578–1580)]. From a sample of 52 healthy adults, the mean oral temperature was 98.285 with a standard deviation of 0.625 degrees.
(a) What are the null and alternative hypotheses?
(b) Test the null hypothesis at α = 0.05.
(c) How does a 95% confidence interval answer the same question?
Questions & Answers
QUESTION:
Problem 75E
Human oral normal body temperature is believed to be 98.6° F, but there is evidence that it actually should be 98.2° F [Mackowiak, Wasserman, Steven and Levine, JAMA (1992, Vol. 268(12), pp. 1578–1580)]. From a sample of 52 healthy adults, the mean oral temperature was 98.285 with a standard deviation of 0.625 degrees.
(a) What are the null and alternative hypotheses?
(b) Test the null hypothesis at α = 0.05.
(c) How does a 95% confidence interval answer the same question?
ANSWER:
Step 1 of 3
(a) The null hypothesis is that the mean oral temperature is 98.6° F, while the alternative hypothesis is that the mean oral temperature is 98.2° F.