Project 1

AA

highly rated community college has over60,000 students and seven different campuses. One of its highest density classes offered is Introduction to Statistics. The statistics course is required for nearly every major offered at the college and therefore is considered a strategic course for the college.Thecollege's leadership is very interested in the relationship between the class size of its statistics courses andstudents' final grades for the course.Specifically, the college is concerned with the low pass rate of some of its class sections and is determined to remedy the situation.The college'sinstitutional research department recently collected data for analysis in order to supportleadership's upcoming discussion regarding the low pass rate of some of its statistics class sections.

Final grades from a random sample of 300 class sections over the last five years were collected. The research division also conductedanalysis, using archiveddata, to determine the class size of these 300 class sections. The ClassNumber, Campus, ClassSize, Average FinalGrade, Number of"F"s, Average G.P.A. andSuccessful/Unsuccessful (success defined as average final grade greater than 70) data were collected for these 300 class sections. Answer the following questions, remember that you will be working with the same dataset every week.

Instructions:

1. Watch the StatTalkTutorial Video first.
2. Launch and review the StatCrunchDataset.
3. Classify each of the 6 data columns as to data typ and level of measurement.
4. What type of study is this?

StatCrunch Tutorial Video:https://mediaplayer.pearsoncmg.com/assets/statcrunch_02

StatCrunch Dataset:https://www.statcrunch.com/app/?dataurl=http%3A%2F%2Fwww.statcrunch.com%2Fbooks%2FCQL%2Fdataset%2FClass_Size.txt&dlim=tab&ft=true

Before doing any project 1 make sure to read and understand slides covering the questions being asked. For example Project 1 asked you: 1) To determine the nature of data (quantitative or qualitative) and the level of measurement (Normal, ordinal, alternative, or ratio) of each column. 2) To identify the type of study (observational or experimental) For each question, make sure to explain your answer for full credit. You have to be careful on question 3 and 5. None of you get them correct. For hint, think of your final grade in this course or anyone. If a student gets a final score of 94 at the end of the semester, the professor will report A in Cuny First but not 94. Also everyone of you would rather have an A and not a F. Being said in which level of measurement would you classify GPA OR your average score? Is it meaningful to subtract A from F? The main difference between Ratio and interval is the zero meaning none, for example a zero in your bank account meaning no money ( Ratio) and a zero meaning something, for example zero degree in temperature meaning freezing (Interval). In adddition for a ratio, it is always possible to compare two values and form a ratio. If you need to redo the project, send me an email for request.

BB

Same project

Answer the following questions and write up your findings in a document, then upload for your instructor to review and grade.Remember, you will be using the same dataset every week.

1. Find the measures of central tendency and measures of variation, as appropriate, for each data column.
2. Separate by campus and compute the mean and standard deviation for each campus.
3. Construct a boxplot for each of the four campuses and compare.
4. What are your findings with regards to the summary statistics and the boxplots

StatCrunchDataset:https://www.statcrunch.com/app/?dataurl=http%3A%2F%2Fwww.statcrunch.com%2Fbooks%2FCQL%2Fdataset%2FClass_Size.txt&dlim=tab&ft=true

StatCrunch Tutorial Video:https://mediaplayer.pearsoncmg.com/assets/statcrunch_02

CC

Same project

1. Instructions:Answer the following questions and write up your findings in a document, then upload for your instructor to review and grade.Remember, you will be using the same dataset every week.
2. Select the first 10 locations listed and find the mean and standard deviation for each of columns 2-5.
3. Consider this sample #1. Take the next 10 and do the same.
4. this is through the entire dataset. You will have 30 samples.Compare and write up your findings of the 30 samples.
5. Next, calculate the mean and standard deviation of the 30 sample means and standard deviations.
6. How does this compare to the mean and standard deviation of the entire sample from part B?
7. How does this relate to the Central Limit Theorem?
8. Write up about your findings and include all of the means and standard deviations.

StatCrunchDataset:https://www.statcrunch.com/app/?dataurl=http%3A%2F%2Fwww.statcrunch.com%2Fbooks%2FCQL%2Fdataset%2FClass_Size.txt&dlim=tab&ft=true

StatCrunch Tutorial Video:https://mediaplayer.pearsoncmg.com/assets/statcrunch_02

DD

Instructions:Answer the following questions and write up your findings in a document, then upload for your instructor to review and grade.Remember, you will be using the same dataset every week.

1. Compute a confidence interval with 95% for each of the campus site for the average final grade and compare across the campuses.
2. Design a study to test the claim that class size affects the number of "F"s in a class.
3. Test your claim.
4. Write up your findings and make sure to include all calculations.

StatCrunchDataset:https://www.statcrunch.com/app/?dataurl=http%3A%2F%2Fwww.statcrunch.com%2Fbooks%2FCQL%2Fdataset%2FClass_Size.txt&dlim=tab&ft=true

StatCrunch Tutorial Video:https://mediaplayer.pearsoncmg.com/assets/statcrunch_02

EE

Answer the following questions and write up your findings in a document, then upload for your instructor to review and grade. Remember, you will be using the same dataset every week. Based on the steps Dr. Vickers outlined in the StatTalk video and the work you have done on the dataset over the past weeks, write up a report on your findings and conclusions. Include necessary calculations and graphs to support your results.

StatCrunch Dataset:https://www.statcrunch.com/app/?dataurl=http%3A%2F%2Fwww.statcrunch.com%2Fbooks%2FCQL%2Fdataset%2FClass_Size.txt&dlim=tab&ft=true StatCrunch Tutorial Video: https://mediaplayer.pearsoncmg.com/assets/statcrunch_02