a colleague of mine and i spent about 2 hours walking around the psu campus sunday ... beautiful day ... between us, took about 170 digital pictures ... all in the same venues ... some inside and most outside ... i have a sony mavica and he an hp ... and both had our settings on the BEST quality ... here are the jpeg file sizes (in kilobytes) for my pics and his pics ... and, i also took a random sample of 30 from each ... perhaps this might make ONE example problem that students could examine ... and speculate on WHY there is so much difference? for background info ... the urls for the two cameras are: hp = http://www.pandi.hp.com/pandi-db/prodinfo.main?product=photoc200camera sony http://www.sel.sony.com/SEL/consumer/ss5/office/digitalstillcameras/mavicacameras/mvc-d73.shtml mavica 82 94 126 95 87 103 69 61 113 64 111 75 85 66 52 73 48 71 79 96 87 37 89 78 89 69 105 78 58 100 88 79 84 50 94 104 118 90 113 96 43 59 62 71 90 86 81 106 101 72 113 62 84 59 51 99 65 151 67 67 80 65 64 52 48 62 46 124 58 106 119 63 83 66 77 97 78 63 71 89 124 83 53 49 74 90 142 64 65 59 58 68 72 57 37 45 53 52 80 51 72 125 75 48 65 60 85 86 98 100 77 55 60 63 59 55 100 55 128 69 94 50 MTB > prin c2 Data Display hp 887 828 754 719 667 639 618 614 594 579 574 567 565 562 545 514 507 500 489 488 470 457 448 447 446 434 432 431 430 429 426 424 424 422 422 421 418 417 417 416 415 414 414 412 409 407 407 406 406 405 405 405 404 402 308 391 389 388 386 385 383 MTB > prin c3 Data Display mavica30 89 48 100 59 84 83 50 124 53 118 68 55 106 74 58 59 37 81 45 62 52 89 113 89 69 77 126 65 111 128 MTB > prin c4 Data Display hp30 409 565 514 574 828 430 507 407 407 545 434 424 416 719 579 386 414 389 388 415 421 402 429 887 405 489 488 405 418 614 MTB > ================================================================= Instructions for joining and leaving this list and remarks about the problem of INAPPROPRIATE MESSAGES are available at http://jse.stat.ncsu.edu/ =================================================================
