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Statistics Quiz 2 (25 MCQs)

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1. How will 'Parental activities' be categorised
2. According to a random telephone survey of 200 adults, 75% of all working adults in the U.S. are satisfied with their current job. What is the population in this survey?
3. Which one of the following is a relative measure of Dispersion?
4. Assign each car in a dealership a number and then use a random-number table to select the cars to be inspected.
5. Descriptive Statistics helps us to _____
6. P be the probability of an event. P = 0.5 implies
7. _____ consist of information coming from observations, counts, measurements, or responses.
8. Which of the following is not the limitations of statistics:
9. REVIEW:When a graph is symmetrical, what would you use to describe the center and spread?
10. Deals with the formulation of inferences about conditions that exist in a population from study of a sample drawn from a population.
11. The data set below has an outlier of 42.2, 5, 12, 15, 19, 4, 6, 11, 16, 18, 12, 12, 42What effect does removing the outlier have on the distribution of the data?
12. A business evaluates a proposed venture as follows. It stands to make a profit of $ 10, 000 with probability 3/20, to make a profit of $ 5000 with probability 9/20, to break even with probability 5/20, and lose $ 5000 with probability 3/20. The expected profit in dollars is
13. Mrs. Jones surveyed the class for the number of letters in their given first name. The data is recorded below.\{5, 8, 6, 5, 4, 9, 8, 7, 6, 3, 8, 7, 5, 6, 7, 8\}What is the interquartile range of the data?
14. What is the outlier of the following data:5, 3, 4, 6, 7, 9, 19, 2, 8, 10, 5
15. A questionnaire is a list of well-planned questions written on paper which can either be personally administered of mailed by the researcher to the respondents using any of the following forms EXCEPT
16. It is the characteristic or attribute of a sample or population that changes or varies for different individuals or things.
17. Social security number of a worker is _____
18. A recent survey found that out of 400 random American adults, 89% pay their bills on time. The margin of error in this survey was 2%. What is the interval of values in which the truth is likely found?
19. The mean of a set of numbers is $ \overline{X}$ . If each number is multiplied by z, the mean is
20. What is the word in statistics for any characteristic or attribute of a person, place, or thing?
21. Samples used were too small and convenient are examples of which kind of misuse?
22. The entire set of items from which data can be selected?
23. Population mean is denoted by
24. Inferential statistics makes judges or claims from analyzing _____
25. In testing hypotheses, which of the following would be strong evidence against the null hypothesis?
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