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34 Use the following textbook expense data (in dollars) to answer the following 5 questions. 35 475 550 540 350 330 510 335 530 370 36 455 525 545 515 435 335 485 540 645 37 435 405 340 470 455 345 650 375 520 38 275 465 330 555 460 455 380 520 620 39 580 335 565 420 510 465 540 545 350 40 410 440 530 505 455 655 520 360 405 41 325 525 545 350 450 435 265 385 540 42 465 460 560 495 530 385 685 470 375 43 545 555 520 490 440 495 570 370 340 44 435 360 590 550 430 425 390 490 430 45 665 610 655 410 560 390 365 595 550 46 385 440 395 395 505 545 430 575 530 47 415 265 420 470 350 525 325 620 325 48 525 505 335 490 560 240 425 460 435 49 280 510 485 510 665 335 430 375 555 50 445 460 490 360 420 470 425 410 680 51 295 415 230 475 430 395 370 380 375 52 490 410 330 610 430 305 590 605 315 53 485 400 480 375 500 445 310 455 355 54 575 310 370 265 415 345 575 395 385 55 650 540 435 380 380 495 460 370 400 56 550 575 385 555 535 650 530 445 340 57 410 545 470 365 360 375 375 620 395 58 490 445 465 600 585 310 430 620 420 59 405 435 365 555 510 530 445 435 610 60 385 540 415 535 515 440 530 570 295 61 62 A random sample selected from the above population yielded the following data: 63 X 64 430 65 440 66 545 67 605 68 310 69 70 1 The sample mean is 71 $466 72 $471 73 $475 74 $480 75 76 2 The sample variance is 77 10374.0 78 12967.5 79 13521.8 80 13990.9 81 82 3 The number of samples of size n = 5 selected from this population is 83 a ####8## 5.770 Billion 84 #####8# 5.713 Billion 85 C ####89# 5.656 Billion 86 ####### 5.600 Billion 87 88 4 If you obtained all possible samples of size n = 5 and computed the mean from each 89 sample, the mean of sample means is 90 a 457.86 91 440.25 92 423.32 93 407.04 94 95 5 If you obtained all possible samples of size n = 5 and computed the mean from each 96 sample, the variance of the means is 97 9218.94 98 2593.50 99 in 1843.79 100 39.40