I Distribution: Critical I Values Ara In One Tail Loft tail 0.10 Area in Two Tails Degrees of Freedom CTOS Freedom 127 DE 5314 1078 60.857 31821 2 41547 3.18 3.747 210 2 015 5 1.44 1.14 2 447 2 365 1.#15 3.355 2421 2 262 1833 3.250 10 276 2 228 1812 1.372 Critical I value 11 (negative) 2718 2 201 1.32 12 31055 2.179 2160 1.350 1:3 1.345 14 14 2977 2624 2.145 1761 15 2141 1.341 15 2947 1.237 18 2120 Right tail 7587 2110 2101 19 1729 19 20 2845 1721 1.323 21 2 831 ITIT 32 1319 1.318 34 2 797 25 2787 2495 1.316 26 26 2 779 247 1.314 2.771 2473 Critical i value 1511 (positive) 2.758 1310 30 31 1.309 32 32 2017 33 1.891 14 3.441 130 35 2 TH4 2030 2 719 Two tails 37 2 715 2026 1.30 2 712 2024 1504 BE 2 708 46 1.684 40 2.704 1.30 45 45 2:412 50 TOCE 1.395 TO 1.312 1.391 1 265 300 200 2:601 25345 LEGO 300 Critical f value Critical I value 2:892 1.649 1.285 (negativej 400 2 58 THE 1.283 5010 500 2 586 2:334 1.648 1.646 1.262 10100 2581 2 578 1.645 And in One Tail 0. 10 An in Tma Taily Degrees of 0.20 Freedom Freedom 0 01 10102NEGATIVE z Scores Standard Normal (2) Distribution: Cumulative Area from the LEFT 05 DI 02 03 -3.40 and lower -3.50 and JOO02 lowe 0301 0003 16003 -31 -34 DOCH 10605 0006 DOOE -21 -3.7 DOCE 4009 -31 0041 0012 OOH1 -21 -3.0 0013 DO13 0013 0012 0015 DO14 DOTS 3018 0017 5016 0019 -24 -20 10319 0024 0027 0026 -2.7 0026 0031 DO29 DO34 0032 0030 0033 0036 -27 10035 0044 0043 6041 -25 -26 DO45 0051 9059 -24 -25 0075 0371 1087 -21 -24 10083 0102 -22 -25 D104 0110 01.22 01 19 0116 01 19 0143 0135 0132 01:29 D145 -21 -22 0150 0170 01 84 0183 -20 -21 0175 D174 0197 0717 0212 4230 -1. 0344 -1.7 -1.B 0-401 0392 0456 -1.6 -1.J CHAG DS TE 0436 0475 0548 0637 0526 1571 0550 -1.5 -1.6 0643 -14 -1.5 0735 0321 0708 -1.3 -1.4 DADE 10853 0838 0823 0934 0901 =1.2 -1.3 1056 .1170 -1.1 -1.2 1151 .1131 .1112 1230 1210 1190 1292 1251 .1379 -1.0 -1.1 1:357 1235 .1423 .1539 .1615 .1492 -1.0 1685 1560 .1611 .1587 .1562 1782 1711 .1841 -1814 1768 1989 1922 1094 2031 1977 -0.7 2090 2061 2005 7206 2148 2109 2236 2177 2389 2358 2327 2206 2451 -O.T 2420 2514 28-43 2611 2578 254 -0.5 2743 3678 2776 2046 2877 2843 2810 3050 3015 3121 -04 -DL.S 3085 3620 -0.1 3557 3632 3421 30783 3745 3707 3837 3850 -02 -03 4062 -01 -0.2 4207 4168 4129 4562 4592 4541 -01 4301 4TGI 4721 5000 4920 NOTE: For values of z below - 3.41, use 0.0001 for the area a Score Area -1.645 -2:575POSITIVE z Scores Cumulative Area from the LEFT JOT 5120 an 5000 50-0 8636 SETS 5714 5398 .5478 6141 0.1 5910 5048 0.2 5793 5832 5871 0.4 6170 5736 6772 6554 7123 .7157 7140 7224 6950 7019 706 05 6915 TAH 0.6 7423 7580 .7642 773 7704 .7734 779 61:13 0.9 4289 8315 4340 8365 8159 4212 8238 09 8354 ASTT 8590 8621 1.0 2551 1.1 3413 8438 8461 8485 1.2 1.1 1980 8907 8925 LEG .9147 9162 1.3 1.2 9177 9039 3115 1.3 9032 -9049 4066 9042 14 9429 9441 14 15 9313 9345 8357 1.6 9506 9615 9525 9535 9452 9563 9474 9484 1.7 4573 9582 1.7 4554 9761 9767 1.9 2046 9738 9744 9750 .9756 19 9719 9726 9812 9817 9778 9786 20 9650 9854 9833 94 45 21 9421 9826 9841 9471 9909 8911 9913 21 9901 3906 2.4 23 9183 9931 9932 9920 9902 9925 9927 9429 215 24 9045 HHB 25 9040 9901 26 9453 9914 27 .9967 9069 9972 9974 9368 8970 27 9465 HT8 9175 9942 9987 3.0 3.1 HO0 9943 9896 9296 4666 .9096 9995 9095 9996 9947 BOAT 939# 3150 and Up 3050 and up Common Critical Values NOTE: For values of a above 3.49, use 0.9909 for the area. Confidence Critical Level Value 1.845 0.95 1.95 Area 575 1.645 09580 2 575 0.9950In a test of the effectiveness of garlic for lowering cholesterol, 48 subjects were treated with garlic in a processed tablet form. Cholesterol levels were measured before and after the treatment. The changes (before - after) in their levels of LDL cholesterol (in mg/dL) have a mea of 3.1 and a standard deviation of 15.6. Construct a 90% confidence interval estimate of the mean net change in LDL cholesterol after the garlic treatment. What does the confidence interval suggest about the effectiveness of garlic in reducing LDL cholesterol? Click here to view a t distribution table. Click here to view page 1 of the standard normal distribution table. Click here to view page 2 of the standard normal distribution table. What is the confidence interval estimate of the population mean ? mg/dL