Statistics Quiz 20 (30 MCQs)

Quiz Instructions

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1. The number I see the most is called the .....
2. Find the median for the set of numbers:23, 37, 11, 58, 13, 45
3. We can measure the cause and effect relationship by
4. , 9-What is the mode?
5. Which of the following is a type of Discrete Numerical Data?
6. What is a characteristic of a sample?
7. Collection, presentation, and description of sample data.
8. The cell phone listed as third best on an online electronics review website.
9. You pick the king of diamonds from a full deck of playing cards. Based on this data, which of the following statistics makes a prediction?
10. The another name for t-test is
11. A question that anticipates and accounts for a variety of answers.
12. Between what two standard deviations of a normal distribution contain 68% of the data?
13. ..... is a sample in which each individual or object in the entire population has an equal chance of being selected.
14. What is a the meaning for "median" ?
15. What statement below is an example of a statistical question?
16. Which answer shows categorical data?
17. What is the mean of test scores? {70, 70, 80, 85, 85, 90, 95, 95, 100, 100}
18. It is the complete set of all the elements that will be studied
19. Data that can be counted or measured.
20. Which of the following involves group-by-group selection of samples?
21. A jar contains 2 pink, 6 red, and 4 blue marbles. If you pick one marble without looking, what is the probability that the marble you pick will be red or blue?
22. ..... statistics consists of generalizing from samples to populations, performing estimations and hypothesis tests, determining relationships among variables, and making predictions.
23. Katie earned 84, 92, 84, 75 and 70 on her first 5 tests. What is the minimum grade Katie needs to earn on the next test to have a mean of 84?
24. A researcher plans to conduct a test of hypotheses at the $\alpha$ = 0.01 significance level. She designs her study to have a power of 0.90 at a particular alternative value of the parameter of interest. The probability that the researcher will commit a Type I error is
25. The average value (statistic) is equal to the parameter
26. What is the range of the following data set:1, 1, 3, 5, 5, 6
27. The main purpose of descriptive statistics is to:
28. An example of a categorical and ordinal variable would be .....
29. Statistics in plural sense deals with
30. Which of the following method is used when an investigator collects the required information with the informant