12. Obtaining a Simple Random Sample The following table lists the 44 presidents

Question

12. Obtaining a Simple Random Sample The following table lists the 44 presidents of the United States 31. Hoover 32. F. D. Roosevelt 33, Truman 1. Washington 2. J. Adams 3. Jefferson 4. Madison 5. Monroe 6. J. Q.Adams 7 Jacksor 8. Van Buren 9. W.H. Harrison 10. Tyler 11. Polk 12. Taylor 13. Fillmore 14. Pieree 15. Buchanan 16. Lincoln 17 A. Johnson 18. Grant 19. Hayes 20. Garfield 21. Arthur 22. Cleveland 23. B. Harrison 24. Cleveland 25. McKinley 26. T. Roosevelt 27 Taft 28. Wilson 29. Harding 30. Coolidge 35. Kennedy 36. L. B. Johnson 37. Nixon 38. Ford 39. Carter 40. Reagan 41. G. H. Bush 42. Clinton 43. GW. Bush 44. Obama (a) Obtain a simple random sample of size 8 using Tableli (b) Obtain a second simple random sample of size 8 using Appendix A, a graphing calculator, or computer software. Table I in Appendix A, a graphing calculator, or computer software. 9. Tr samm 10. of in Vocabulary and Skill Building 1. Describe a circumstance in which stratified sampling would be an appropriate sampling method. 2. Which sampling method does not require a frame? 3. Why are convenience samples ill advised? 4, A(n) _ _ sample is obtained by dividing the population into groups and selecting all individuals from within a random sample of the groups 5. A(n)sample is obtained by dividing the population into homogeneous groups and randomly selecting individuals from each group. In P ever 3rd 12

Explanation / Answer

In order to obtain a random sample in excel we will first pass the names of the presidents, then in the cell we will immediately put the formula = RANDOM () the parenthesis must be empty, it will give us the first random number, we lower the cell with the mause and we will have the other random numbers.
then we will look for the sample by writing the criterio for example by hierarchy:
= HIERARCHY.EQV (cell of interest)
then he will give us the random numbers

=aleatory() sample criterion SELECTION 1 Whashington 0.40769115 1 22 Cleveland 2 Adams 0.55193572 2 14 Pierce 3 Jefferson 0.35226044 3 24 Cleveland 4 Madison 0.38783365 4 22 Cleveland 5 Monroe 0.03997546 5 40 Reagan 6 J. Q. Adams 0.4088866 6 20 Garfield 7 Jackson 0.63874374 7 11 Polk 8 Van Buren 0.43139046 8 18 Grant 9 W- H- Harrison 0.38337421 10 Tyler 0.82396639 11 Polk 0.66756983 CRITERION SELECTION 12 Taylor 0.10728461 1 14 Pierce 13 Filmore 0.74248503 2 25 McKinley 14 Pierce 0.61115243 3 22 Cleveland 15 Buchanan 0.05626388 4 41 G.H. Bush 16 Lincoln 0.20532837 5 20 Garfield 17 A. Jhonson 0.44159585 6 11 Polk 18 Grant 0.13446526 7 19 Hayes 19 Hayes 0.28562673 8 20 Garfield 20 Garfield 0.90499397 21 Arthur 0.77542043 22 Cleveland 0.95249263 23 B. Harrison 0.1083694 24 Cleveland 0.39064282 25 McKinley 0.31276667 26 T. Roosevelt 0.94005143 27 Taft 0.25995083 28 Wilson 0.73249419 29 Harding 0.58985675 30 Coolidge 0.53759797 31 Hoover 0.19796592 32 F. D Roosevelt 0.12140679 33 Truman 0.31447821 34 Eisenhower 0.64709974 35 Kennedy 0.5071289 36 L. B. Jhonson 0.13822883 37 Nixon 0.4770914 38 Ford 0.24188203 39 Carter 0.24293394 40 Reagan 0.87710561 41 G.H. Bush 0.09244646 42 Clinton 0.45395373 43 G.W.Bush 0.29557657 44 Obama 0.05923361

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