Question 4:
An article in Wikipedia claims that the mean body temperature of adults is less than 98.6° F. This goes against everything you’ve ever been taught, so you gather 565 healthy adults and observe a mean body temperature of 98.2°F, with the sample standard deviation of 2.6°F. Test the article’s claim at a 5% level of significance.
If the problem is a confidence interval:
Show whether the criteria for approximate normality are met. (1 point)
Summarize the sample statistics. (1 point)
Give the formula for the margin of error or test statistic. (1 point)
Give the formula for the confidence interval. (1 point)
Based on the technology results provided, write the 95% confidence interval. (3 points)
Interpret the results in the context of the problem (3 points)
If the problem is a hypothesis test:
Give the null and alternative hypotheses; (2 points)
Is this a one‐tailed or two‐tailed test? Think about the
null hypothesis. How do you know
that this is a one or two‐tailed test? (1 point)
Show whether the criteria for approximate normality are met. (1 point)
Summarize the sample statistics (1 point)
Give the formula for the test statistic; (1 point)
Using the technology results provided, point out the
value for the test statistics, degree of
freedom, and the p-value. (1 point)
Using the p-value and the significance level, make a
decision on the null hypothesis. (1
point)
What decision can you make about the alternative hypothesis? (1 point)
Write your conclusion in the context of the problem. (1 point)
Get Answers For Free
Most questions answered within 1 hours.