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Statistics Quiz 7 (25 MCQs)

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1. Which of the following accurately describes the power of a statistical test of hypothesis?
2. Disneyland often surveys its guests as they exit a restaurant during their visit. The surveyor stands at the restaurant exit, counts the number of people leaving, and surveys every 25th guest.This is a form of:
3. Andrea got a 98, 90, and 94 on her math quizzes. What was her average quiz score?
4. All subjects under investigation
5. Find the z-score for 48 given a mean of 50 and a standard deviation of 5.
6. Price, weight, height and velocity are examples of
7. The algebraic sum of the deviations of a set of n values from their mean is
8. In this study, the researcher manipulates one of the variables and tries to determine how manipulation influences other variables.
9. Religious affiliation is an example of?
10. Find the mean of the numbers:2, 4, 5, 5, 6, 8
11. A restaurant chain wanted to find out how the customer experience was in a store.Which choice best represents a statistic?
12. Welfare definition of Economics has been given by:
13. Between a Population and Sample:which size is bigger?
14. Descriptive statistics
15. A particular observation which occurs maximum number of times in a given data is called its
16. You have a mean of 56 and a standard deviation of 4.3. What is-2 standard deviations from the mean?
17. Information collected by the researcher in quantitative or qualitative form are named as:
18. What is the mean of the following data set:1, 2, 4, 9, 9
19. A variable that takes only whole number as its score is known as
20. The sample size of poll is 107 people. What is the approximate margin of error.
21. These are units of information, often numeric, recorded and used for the purpose of analysis.
22. Population mean or proportion The parameter must be identified before analysis?
23. A subset of the population.
24. What is the the total area under the standard normal distribution curve?
25. The average waist size for teenage males is 29 inches with a standard deviation of 2 inches. If waist sizes are normally distributed, determine the z-score of a teenage male with a 33 inch waist.
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