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df o.10 0.05 e.025 to.01 0.005 df Values of ta 3.078 6.314 12.706 31.821 63.657 1.886 2.920 4.303 6.965 9.925 1.638 2.353 3.182 4.54 5.84 1.533 2.132 2.776 3.747 4.604 0 1476 2.015 2.57 3.365 4.032 1.440 1.943 2.447 3.143 3.707 1.415 1895 2.365 2.998 3.499 1.397 1860 2.306 2.896 3.355 1.383 1833 2.262 2.82 3.250 1.372 1.812 .228 2.764 3.169 1.363 796 .20 2.718 3.106 1.356 1.782 2.179 2.68 3.055 1.350 177 2.160 2.650 3.012 1.345 1.76 2.145 2.624 2.977 10 10 13 13 134 1.753 2.13 2.6022.947 1.337 1746 2.120 2583 2.921 1.333 1.740 2.10 2.567 2.898 1.330 1734 2.102.552 2.878 1.328 1.729 2.093 2.539 2.861 1.325 1.725 2.086 2.528 2.845 1.323 1.72 2.080 2.518 2.83 1.32 1.717 2.07 2.508 2.819 1.319 1714 29 2.500 2.807 1.318 7 2.64 2.492 2.797 16 17 16 17 18 19 20 21 19 20 21 23 24 23 24 26 27 28 29 30 1316 1.7082.060 2.485 2.787 1.315 1.706 2.056 2.479 2.779 1314 1.703 2.052 2.473 2.77 1.313 1.70 2.048 2.467 2.763 1.3 1699 2.045 2.462 2.756 26 27 28 29 30 1.310 1697 2.042 2.457 2.750 1.309 1.696 2.040 2.453 2.744 1.309 694 2.037 2.449 2.738 32 321.295 669 998 2.386 2.655 1.295 1669 997 2.385 2.654 1.295 1668 997 2.384 2.652 1.294 668 996 2.383 2.651 1.294 1668 995 2.382 2.650 1.294 .667 .995 2.382 2.649 1.294 667 994 2.38 2.648 1.294 667 994 2.380 2.647 1.293 1.666 993 2.379 2.646 1.293 1.666 993 2.379 2.645 1.293 .666 993 2.378 2.644 1.293 1665 992 7 2.643 1.292 664 990 2.374 2.639 1.292 663 988 2.37 2.635 1.291 .662 1.987 2.368 2.632 1.291 .66 1.985 2.366 2.629 1.290 660 984 2.364 2.626 1.286 1653 972 2.345 2.601 1.284 650 968 2.339 2.592 1.284 649 966 2.336 2.588 1.283 1.648 1965 2.33 2.586 1.283 647 964 2.333 2.584 1.283 1647 1963 2.332 2.583 1.283 1647 1963 2.33 2.582 1.282 647 963 2.330 2.581 1.282 646 1.962 2.330 2.581 1.282 1646 96 2.328 2.578 65 67 67 69 70 71 72 73 69 70 73 75 80 85 75 80 95 100 200 300 400 500 95 100 200 300 400 500 700 700 1000 2000 1000 2000 df o.10 o.os 0.025 0,01 0.o0s df 1.282 1.645 960 2.326 2.576 0.10 Z0.0s2002 0.0 Z 0.005Use the one-mean tinterval procedure with the sample mean, sample size, sample standard deviation, and confidence level given below to find a confidence interval for the mean of the population from which the sample was drawn. x-2.0 n = 51 s 4.8 confidence level 90% Click of the table of critical values for the t distri The 90% confidence interval about is to (Round to two decimal places as needed.)

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Answer #1

(o.88, 312)the 90% confidence interval for mean is (0.88, 3.12)

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