II). Assume that the site is an urban site that contains a clearly visible structure in stratum I and no visible structure in stratum II. Thus, archaeologists might wish to sample the area that contains the visible structure at a higher intensity than the remainder of the site. Stratum I Stratum II 1 2 3 4 5 6 7 8 9 10 11 12 14 15 16 17 18 20 21 22 23 24 25 26 27 28 29 30 X X X 31 32 33 34 36 37 38 39 40 X X X 41 42 43 45 46 47 49 50 X X 51 52 56 57 59 60 X 61 62 63 64 65 67 68 69 70 X X X 71 72 73 76 77 78 80 X X 81 82 83 84 85 86 87 88 89 90 X 91 92 93 94 95 96 97 99 100 We want to use class data to determine if, for an archaeological site with the above layout, stratified random sampling of 20 test-pits (16 test-pits from stratum I and 4 repeated from stratum II) will result in estimated total numbers of finds that are less variable than the estimated totals resulting from simple random sampling (20 test-pits sampled). repeated 1. Do you think that stratified random sampling of test-pits from the above site will be repeated likely to produce less variable estimates of the total number of finds at the site than will repeated simple random sampling of test-pits? Why? Or, why not? 2. Using ANY SEED select a simple random sample of 20 of the test-pits from the above site. What is the estimated total number of finds at the site? your estimated total number of finds for your simple random sample on one of your sticky notes and place your sticky note in the appropriate position on the frequency plot on the white board labeled Random Sample Estimated Totals.” “Simple 3. Using ANY SEED, select a stratified random sample of 20 of the test-pits from the above site (sample 16 test-pits from stratum I and 4 test-pits from stratum II).
II). Assume that the site is an urban site that contains a clearly visible structure in stratum I and no visible structure in stratum II. Thus, archaeologists might wish to sample the area that contains the visible structure at a higher intensity than the remainder of the site. Stratum I Stratum II 1 2 3 4 5 6 7 8 9 10 11 12 14 15 16 17 18 20 21 22 X 23 X 24 X 25 26 27 28 29 30 31 32 X 33 X 34 X 36 37 38 39 40 41 42 X 43 X 45 46 47 49 50 51 52 X 56 57 59 60 61 62 X 63 X 64 X 65 67 68 69 70 71 72 X 73 X 76 77 78 80 81 82 83 X 84 85 86 87 88 89 90 91 92 93 94 95 96 97 99 100 We want to use class data to determine if, for an archaeological site with the above layout, repeated stratified random sampling of 20 test-pits (16 test-pits from stratum I and 4 from stratum II) will result in estimated total numbers of finds that are less variable than the estimated totals resulting from repeated simple random sampling (20 test-pits sampled). 1. Do you think that repeated stratified random sampling of test-pits from the above site will be likely to produce less variable estimates of the total number of finds at the site than will repeated simple random sampling of test-pits? Why? Or, why not? 2. Using ANY SEED select a simple random sample of 20 of the test-pits from the above site. What is the estimated total number of finds at the site? your estimated total number of finds for your simple random sample on one of your sticky notes and place your sticky note in the appropriate position on the frequency plot on the white board labeled “Simple Random Sample Estimated Totals.” 3. Using ANY SEED, select a stratified random sample of 20 of the test-pits from the above site (sample 16 test-pits from stratum I and 4 test-pits from stratum II).
SamplinginArchaeology.docx