. How would you describe a confidence interval to someone who does not understand statistics?

| November 18, 2015

1. How would you describe a confidence interval to someone who does not understand statistics? What is the point of it? Why do we do construct one?

2. Find a research article that uses a confidence interval. Give either the citation for it or the website address at which you found it. Discuss what the research was trying to show, as well as the results from the confidence interval. Give a little bit of background information on the study.

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ASSIGNMENT #3: Variables Control Charts and Process Capability INSTRUCTIONS: Use MINITAB 17 to complete the following exercises
Cough syrup is supposed to contain 6 ounces of medicine per bottle. However since the filling machine is not always precise, there can be variation from bottle to bottle. The amounts in the bottles are normally distributed with σ = 0.3 ounces. A quality assurance inspector measures 10 bottles and finds the following (in ounces): 5.95, 6.10, 5.98, 6.01, 6.25, 5.85, 5.91, 6.05, 5.88, 5.91 Are the results enough evidence to conclude that the bottles are not filled adequately at the labeled amount of 6 ounces per bottle? #1) State the hypothesis you will test #2) Calculate the test statistic #3) Find the P-value - and help me understand HOW you got the p-value #4) What is the conclusion?

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