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Statistical Estimation Chapter Exam

Exam Instructions:

Choose your answers to the questions and click 'Next' to see the next set of questions. You can skip questions if you would like and come back to them later with the yellow "Go To First Skipped Question" button. When you have completed the practice exam, a green submit button will appear. Click it to see your results. Good luck!

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Question 1 1. A t-curve is symmetrical around:

Question 2 2. The t distribution has a _____ compared to the standard normal distribution.

Question 3 3. What is the tool used in mathematics to make inferences about populations from data?

Question 4 4. Which of the following illustrates a biased estimator?

Question 5 5. As the number of degrees of freedom increases, the t-curve will look more like _____.

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Question 6 6. The total area under a t-curve is:

Question 7 7. What are the characteristics used to describe a population?

Question 8 8. For a biased sample to be useful, what do we need to know about it?

Question 9 9. Which would you rather work with: a sample with a constant bias or a sample that is unbiased but inaccurate? Why?

Question 10 10. What is a type of estimation that uses a single value, a sample statistic, to infer information about the population?

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Question 11 11. A t-curve never:

Question 12 12. What is the range of numbers in which a population parameter lies considering margin of error?

Question 13 13. A thermometer that is always wrong by unpredictable margins is an example of:

Question 14 14. What is the characteristics of a sample used to infer information about the population called?

Question 15 15. Which of the following represents the DESIRED type of sample?

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Question 16 16. How does a population differ from a sample?

Statistical Estimation Chapter Exam Instructions

Choose your answers to the questions and click 'Next' to see the next set of questions. You can skip questions if you would like and come back to them later with the yellow "Go To First Skipped Question" button. When you have completed the practice exam, a green submit button will appear. Click it to see your results. Good luck!

Statistics 101: Principles of Statistics  /  Math Courses
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