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STAT 230 OL4 US2 SECTIONS FINAL EXAM SPRING 2015 COMPLETE SOLUTION
STAT 230 OL4 US2 SECTIONS FINAL EXAM SPRING 2015 COMPLETE SOLUTION. GET AN A++.
STAT 230
OL4 / US2 Sections
Final Exam
Spring 2015
The final exam will be posted at 12:01 am on May 8, and it is due at 11:59 pm on May 10, 2015. Eastern Time is our reference time.
This is an open-book exam. You may refer to your text and other course materials as you work on the exam, and you may use a calculator. You must complete the exam individually. Neither collaboration nor consultation with others is allowed.
Answer all 25 questions. Make sure your answers are as complete as possible. Show all of your work and reasoning. In particular, when there are calculations involved, you must show how you come up with your answers with critical work and/or necessary tables. Answers that come straight from programs or software packages will not be accepted. If you need to use software (for example, Excel) and /or online or hand-held calculators to aid in your calculation, please cite the sources and explain how you get the results.
Record your answers and work on the separate answer sheet provided.
This exam has 250 total points.
You must include the Honor Pledge on the title page of your submitted final exam. Exams submitted without the Honor Pledge will not be accepted.
1. True or False. Justify for full credit. (25 pts)
1. If the variance from a data set is zero, then all the observations in this data set must be identical.
(b) P(A AND Ac ) 1, where Ac is the complement of A.
1. The mean is always equal to the median for a normal distribution.
2. A 99% confidence interval is wider than a 95% confidence interval of the same parameter.
3. It is...