Test your basic knowledge |

DSST Intro To Statistics

Subjects : dsst, statistics
Instructions:
  • Answer 50 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. Type of information - usually a property of characteristic of a person or thing that is measured or observed






2. The level of significance and the probability of a type I error (rejecting a true null hypothesis). The area in the tail or tails of a distribution (z - t - or ?2); in hypothesis testing you don't always have a two tailed distribution as in confidenc






3. Type of bar graph that shows frequency distributions






4. When the distribution of the data values greater than the center of the display - and the data values less than the center of the display are mirror images of each other






5. Mean - mode - median and midrange.






6. A quantity calculated from data gathered from a sample- usually used to estimate a population parameter






7. Information about individuals in a population






8. Double the answer from step 1 or step 2 (on whichever side your test statistics falls).






9. Is the process of selecting a portion - or sample - of the entire population






10. Is a sample of data values selected from a population in such a way that every sample of size 'n' has an equal probability of being selected and every data value of the population has the same chance of being selected for the sample






11. Standard scores and percentile






12. Level of measurement- Involves data that may be arranged in some order - but differences between data values either cannot be determined or are meaningless. (Example) Questions on a survey are scored with integers 1 thru 5 with 1 representing strong






13. A method in which each combination of people has an equal chance of being selected- the sample is representative of the population and is independent






14. Involves the procedures associated with the data collection process - the summarizing and interpretation of data - and the drawing of inferences or conclusions based on the analysis of the data






15. _______________ of a numerical variable represents the data values of the variable from the lowest to the highest value along with the number of times each data value occurs






16. To calculate the percentile take the number of values less than x - divide by total number of values and times by 100.






17. Is a number that describes a characteristic of a population






18. Null hypothesis






19. (largest data value) - (smallest data value)






20. Level of measurement- involves data that consist of names - labels and categories only. The data cannot be arranged in an ordering scheme (such as low to high). (Example) Nationalities of survey respondents






21. Sum of the values






22. A number that is used to describe a characteristic of a sample - such as a sample average - is called a __________.






23. Sample size or number of trials






24. Data values that are either much larger or much smaller than the general body of data- they should be included in an analysis unless they are the result of human or other error






25. Members of the population select themselves by volunteering






26. To find the range subtract the lowest value by the highest value.






27. Level of measurement- Is the interval level modified to include the inherent zero starting point (where zero indicates that none of the quantity is present). For values at this level - differences and ratios are both meaningful. (Example) Ages of sur






28. Collection of information from a sample






29. A visual exploratory data analysis technique that shows the shape of a distribution - this kind of display uses the actual values of the variable to present the shape of the distribution of data values






30. Is the process of using SAMPLE INFORMATION to draw inferences or conclusions about the POPULATION






31. Is a sample that has the pertinent characteristics of the population in the same proportion - as they are included in that population






32. The important aspects of the data are called?






33. A method of data collection where the researcher selects a sample from the population and measures the variable of interest






34. Is a collection of several data pertaining to one or more variables






35. Is the entire collection of all individuals or objects of interest






36. A method in which you randomly choose one number from 'l' to 'k' and continue to select the kth element






37. Capital sigma; summation






38. Sample variance






39. Mu; population mean






40. Statistics






41. The variable value can be represented as isolated points on a number line






42. The number of times each data value occurs






43. Test use normalcdf(ZTS -999)






44. Is the portion of the population that is selected for study






45. Determine the location of the middle value of all the data values






46. Sample standard deviation






47. A flaw in the sampling procedure that makes it more likely that the sample will NOT be representative of population






48. Variable where the value is a number that results from a measurement process - also called numerical data






49. Can be used to get an initial graphical view of data






50. A numerical quantity measuring some aspect of the population







Sorry!:) No result found.

Can you answer 50 questions in 15 minutes?


Let me suggest you:

Browse all subjects

Browse all tests

Most popular tests



Major Subjects

Tests & Exams


AP
CLEP
DSST
GRE
SAT
GMAT

Browse all subjects

Browse all tests

Most popular tests