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One year, the mean age of an inmate on death row was 38.8 years. A sociologist wondered whether the mean age of a death-row inmate has changed since then. She randomly selects 32 death-row inmates and finds that their mean age is 37.7, with a standard deviation of 8.5. Construct a 95% confidence interval about the mean age. What does the interval imply? E Click the icon to view the table of critical t-values. Construct a 95% confidence interval about the mean age. With 95% confidence, the mean age of a death row inmate is between years and years. (Round to two decimal places as needed.)

One year, the mean age of an inmate on death row was 38.8 years. A sociologist wondered whether the mean age of a death-row inmate has changed since then. She randomly selects 32 death-row inmates and finds that their mean age is 37.7, with a standard deviation of 8.5. Construct a 95% confidence interval about the mean age. What does the interval imply? E Click the icon to view the table of critical t-values. Construct a 95% confidence interval about the mean age. With 95% confidence, the mean age of a death row inmate is between years and years. (Round to two decimal places as needed.)

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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One year, the mean age of an inmate on death row was 38.8 years. A sociologist wondered whether the mean age of a death-row inmate has changed since then. She randomly selects 32 death-row inmates and finds that their mean age is 37.7, with a standard deviation of 8.5. Construct a 95% confidence interval about the mean age. What does the interval imply? E Click the icon to view the table of critical t-values. Construct a 95% confidence interval about the mean age. With 95% confidence, the mean age of a death row inmate is between years and years. (Round to two decimal places as needed.)
Transcribed Image Text:One year, the mean age of an inmate on death row was 38.8 years. A sociologist wondered whether the mean age of a death-row inmate has changed since then. She randomly selects 32 death-row inmates and finds that their mean age is 37.7, with a standard deviation of 8.5. Construct a 95% confidence interval about the mean age. What does the interval imply? E Click the icon to view the table of critical t-values. Construct a 95% confidence interval about the mean age. With 95% confidence, the mean age of a death row inmate is between years and years. (Round to two decimal places as needed.)
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Transcribed Image Text:Using the browser's print will lead to an undesirable print-out. Use the Print item from the "Question Help" menu to get a bet -Ana in ight a -Distribution Area in Right Tail Degrees of Freedom 0.25 20 0.10 0.05 025 es 02s 1376 1.061 0.978 314 200 2359 2132 2015 12.706 4303 3.I2 2.776 1504 4849 63657 122 I 318309 66.619 22327 10.215 2173 L000 O816 3.078 1886 168 9.925 5841 4.604 4.032 31.590 12.924 6.5 14.00 3. 0.765 0.741 0.727 1250 L190 LIS 1.533 1476 342 2.999 2757 4.541 3.747 3.365 2453 5.598 4.773 0.941 0.920 6860 0.7I8 0.711 0.706 1440 1415 1.397 2.447 2365 2.306 0.906 L134 L943 2612 3.143 4317 5.208 5.959 300 2.517 2.449 2 2.896 4.785 4.501 5041 4.7 4.587 3.355 L100 0.700 a700 1372 2.8 2359 2764 3.250 3.169 300 3.581 10 2.228 4144 2.201 2.179 2.10 2.145 2328 203 2282 2.264 2.718 2.681 2650 2.624 4.005 3.930 3.852 3.787 4.437 4315 4221 4140 LOS 1.363 12 13 14 15 Liss 1.350 145 0.605 LOR3 1079 3.428 3372 OSTO 1.77 3.012 0.692 LO4 2.349 2047 3733 1.753 2.602 407 16 17 0600 1071 LO9 1337 1333 1.46 2.130 2.110 2.101 2.00 2.06 2.00 2.074 20 2215 2.224 2.214 2.205 2921 2898 3.252 3.222 3646 3610 3.579 3.552 3.527 3.505 0,689 3.965 3.922 2.567 18 19 250 2539 1067 1729 1725 2878 2.861 2845 3.134 3.153 3.135 3.119 3.104 1328 1325 20 LO64 2.197 2528 2518 2.50N 2500 3RSO 21 2.189 2.183 2177 2831 2819 2807 3819 22 23 LO6 3.72 3.768 3.745 3.725 3.707 0.685 3.447 24 25 1318 1316 1711 2.064 2.060 2172 2.167 2492 24RS 2.797 2787 3.00 3.078 0684 LOSS 3.450 2.06 2062 2048 2045 2012 2770 2771 2763 2.756 2750 3.07 3.057 3.047 3.08 LOSS 2470 2473 2467 2462 2457 26 2.162 3.435 3421 3.4N 27 0684 OASS 1314 2158 2154 364 3659 29 LOSS 1311 1310 2150 2147 3.396 30 GAS4 L 3.000 3646 LO54 2144 2141 2138 2136 0682 0.682 1309 2.010 2.037 2.005 2453 2449 2445 2441 2744 2738 3.022 3.015 3.00 3.002 3375 3.365 3.356 3348 140 3613 3.622 L 32 27 2.728 34 0.682 LOS2 L 200 3.601 3.901 35 213M 24M 2734 2.996 2008 2.006 2.004 36 2719 2.131 2129 2.127 2.125 2123 24M 24 2429 2426 2423 2.900 2.985 2.980 2.906 3.333 3.326 3319 3.52 3.514 3.S6 L87 L 2715 2712 GASI 1304 0.681 LARS 0.681 1303 2021 2704 2.971 3.307 3.1 2.009 2.000 L994 1990 1987 2678 2660 2648 2610 50 0.679 0679 LO47 1299 1676 2.109 2.403 2.997 3.261 3.46 3.212 1045 LO44 1296 1294 1202 1671 2.099 2.093 2.915 200 287 3435 3416 3402 70 0678 2.381 3.211 1664 2.08 2.084 2374 23 3.195 3.183 3124 90 0677 LO42 1291 2632 2878 0677 0675 0674 2364 2330 100 toe 2636 300 3291 122 192 190 2.06 2.054 1646 3.008 1645 2326 256 3000 Degrees of a25 Freedom .20 015 0.10 0,05 25 L0I 05 e.0025 -Distribution Area in Right Tail
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