Formulate a question and explain the decision process

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Reference no: EM132296905

Confidence Interval Project -

For this project, you will be given two variables, number of cups of coffee per day and height. These are for Longwood College students, which will be your population. Again, I want you to come up with a question you are interested in about one of these variables and then answer it using statistics. This time we will throw in a confidence interval or two to help you answer the question. Below is what you will be graded one. Be sure to write up part I before you get a sample or look at the data. You probably want to use a mean, but you can do a proportion if you are willing to wait a day or two

I. Formulate a question and explain the decision process behind the choices made.

Make sure you explain why you picked the question you did, in particular why you found it interesting and what use it could be and to whom. What do you think the answer will be? Why?

II. Use statistical methods to gather and analyze data.

Find a random sample and explain how you got it. Find a boxplot, five number summary, mean, standard deviation, and a histogram. Look at the histogram and boxplot and write a few sentences explaining why you think the population might or might not be normally distributed. Then come up with an answer to your question using the statistics and plots.

Then run at least two confidence intervals, with different confidences on the parameter you are interested in. Give the numerical intervals along with what they mean. Indicate the error for each one. Do these indicate that you were right or wrong before? Why?

III. Determine the reasonableness of the answer and explain the limitations of your method.

Does the answer the statistics suggest seem reasonable to you in terms of what you know about your fellow students as well as statistics? Why or why not? What might make you incorrect? Explain.

IV. Interpret your results in a context appropriate for a broader audience.

Go back to your original problem and to whom it might be interesting. Write a conclusion that explains to this person or organization what you found. Do not use any statistical terms.

Attachment:- Assignment Files.rar

Reference no: EM132296905

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len2296905

4/30/2019 9:47:59 PM

This paper must be typed, double-spaced, in some reasonable font (like Times New Roman or Garamond), in some reasonable format (like .docx, .pdf, or .odt) and with the pages fastened together in some permanent fashion (like staples or rivets). Since this is a group project, you can work in groups of up to four people but each group must turn in one paper with all the names on it. You may not collaborate in any way with people outside your group.

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