Mathematics Homework Help
Houston Community College System Statistics Questions
Please find the practice quizzes in the attached files. if you need any other documents please let me know. thanks
Last semester, a cluster of six students all submitted the same incorrect answer on one problem. Their work showed the same calculation error at an early step. So, do your own work, and do nothing to make me suspicious. Remember: a poor grade is a temporary inconvenience, but guilt is eternal.
This is not intended to be a hard exam. It is meant to be somewhat challenging, but it is also meant to be informative. The data are real, and the inferences you draw are trustworthy. I intend for you to interpret every word and phrase literally. There are no trick questions. If you suspect that you have found an error, please contact me.
Page 10 has a table of chi-squared critical values. It was copied and pasted directly from lecture.
Pages 12–16 have tables for you to show your work calculating means, variances, and chi-square statistics.
If you do not have a printer, then you can hand-write each the tables in a few minutes. I strongly recommend that you print the exam and show your work. If you use software to complete the calculations, then print your output. When the tables are filled in, use a scanner – an actual scanner or an app on your phone, such as Genius Scan to turn the pages into a PDF that you can upload and/or email.
Page 17 has a table of t* critical values at the 95% confidence level. You can also use any table posted on Blackboard, shown in the lectures, or printed in a textbook. However, this table I provided has two advantages: it shows all degrees of freedom from 1 to 212, and it is precise to four decimal points.
