Assistance requested
Refer to the accompanying data display that results from a sample of airport data speeds in Mops. Complete parts (a) through (c) below. TInterval Click the icon to view a t distribution table. (13.046,22.15) x =17.598 SX = 16.01712719 n = 50 a. What is the number of degrees of freedom that should be used for finding the critical value to/ 2? df = (Type a whole number.) b. Find the critical value to/2 corresponding to a 95% confidence level. ta /2 = (Round to two decimal places as needed.) c. Give a brief general description of the number of degrees of freedom. O A. The number of degrees of freedom for a collection of sample data is the number of sample values that can vary after certain restrictions have been imposed on all data values. O B. The number of degrees of freedom for a collection of sample data is the number of sample values that are determined after certain restrictions have been imposed on all data values. O C. The number of degrees of freedom for a collection of sample data is the number of unique, non-repeated sample values. O D. The number of degrees of freedom for a collection of sample data is the total number of sample values.X i Critical t values TInterval Refer to the accompanying data display that results from a sample (13.046,22.15) x = 17.598 Click the icon to view a t distribution table. SX = 16.01712719 t Distribution: Critical t Values n = 50 Left tail Area In One Tall 0.01 0.025 0.05 0.10 0.006 Degrees of a. What is the number of degrees of freedom that should be used fo Degrees of Area In Two Talls Freedom 0.02 0.05 0.10 0.20 Freedom 0.01 63.657 31.821 12.706 6.314 3.078 df = 9.925 4.303 2.920 1.886 6.965 C No C0 N (Type a whole number.) 5.841 4.541 3.182 2.353 1.638 4.604 2.77 2.132 1.533 3.747 b. Find the critical value to/2 corresponding to a 95% confidence le 4.032 3.365 2.571 2.015 1.476 3.707 3.143 2.447 1.943 1.440 2.365 1.895 1.415 3.499 2.999 to /2 = 1.397 3.355 2.890 2.30 1.860 (Round to two decimal places as needed.) 2.821 2.262 1.833 1.383 Critical + value 3.250 1.812 1.372 c. Give a brief general description of the number of degrees of freed (negative) 3.169 2.764 2.228 1.363 11 3.106 2.718 2.201 1.796 3.055 2.681 2.17 1.356 O A. The number of degrees of freedom for a collection of sample 12 1.782 3.012 2.65 2.16 1.771 1.350 2.624 2.145 1.76 1.345 O B. The number of degrees of freedom for a collection of sample 2.977 2.602 2.131 1.753 1.341 15 Right tail 15 2.947 O C. The number of degrees of freedom for a collection of sample 1,746 1.337 16 16 2.921 2.583 2.120 17 2.898 2.567 2.11 1.740 1.333 17 O D. The number of degrees of freedom for a collection of sample Print Done ? Click to select your answer(s).- X i Critical t values TInterval Refer to the accompanying data display that results from a sample (13.046,22.15) Click the icon to view a t distribution table. x = 17.598 2.878 2.562 2.101 1.734 1.330 18 Sx = 16.01712719 2.861 2.539 2.093 1.729 1.328 19 n = 50 2.845 2.528 2.08 .725 1.325 20 2.831 2.518 2.080 1.721 1.323 21 a. What is the number of degrees of freedom that should be used fo 2.819 2.508 2.074 .717 1.321 22 2.807 2.500 2.069 .714 1.319 23 df = 24 2.797 2.490 2.064 1.711 1.318 24 25 2.787 2.485 2.060 1.708 1.316 25 (Type a whole number.) 26 2.779 2.479 2.056 1.706 1.315 26 Critical + value 27 2.771 2.473 2.052 1.703 1.314 27 b. Find the critical value to/2 corresponding to a 95% confidence le (positive) 28 2.763 2.467 2.048 1.701 1.313 28 29 2.756 2.462 2.045 1.699 1.311 29 to /2 = 30 2.750 2.457 2.042 .697 1.310 30 31 2.744 2.453 2.040 1.696 1.309 31 (Round to two decimal places as needed.) 32 2.738 2.449 2.037 1.694 1.309 32 c. Give a brief general description of the number of degrees of freed 33 2.733 2.445 2.035 1.692 1.308 33 34 2.728 2.441 2.032 1.691 1.307 34 2.030 1.690 1.306 35 O A. The number of degrees of freedom for a collection of sample Two tails 35 2.724 2.438 36 2.719 2.434 2.028 1.688 1.306 36 O B. The number of degrees of freedom for a collection of sample 37 2.715 2.431 2.026 1.687 1.306 37 38 2.712 2.429 2.024 1.686 1.304 38 O C. The number of degrees of freedom for a collection of sample 39 2.708 2.426 2.023 1.685 1.304 40 O D. The number of degrees of freedom for a collection of sample 40 2.704 2.423 2.021 1.684 1.303 Print Done ? Click to select your answer(s).- X i Critical t values TInterval Refer to the accompanying data display that results from a sample (13.046,22.15) Click the icon to view a t distribution table. 2.728 2.441 2.032 1.691 1.307 34 x = 17.598 34 Two tails Sx = 16.01712719 2.724 2.438 2.03 1.690 1.306 35 2.028 1.688 1.306 36 2.719 2.434 n = 50 2.715 2.431 2.026 1.687 1.305 37 2.712 2.429 2.024 1.686 1.304 38 a. What is the number of degrees of freedom that should be used fo 2.708 2.426 2.023 1.685 1.304 39 40 2.704 2.423 2.021 1.684 1.303 40 df = 45 2.690 2.412 2.014 1.679 1.301 45 50 2.678 2.403 2.009 1.676 1.299 50 (Type a whole number.) x/2 a/2 60 60 2.660 2.390 2.000 1.671 1.296 b. Find the critical value to/2 corresponding to a 95% confidence le 70 2.648 2.381 1.99 .687 1.294 70 80 2.639 1.990 1.684 1.292 80 2.374 90 2.632 2.368 1.987 1.662 .291 90 to /2 = Critical + value Critical +value 1.660 1.290 100 100 2.626 2.364 1.984 (positive) 200 (Round to two decimal places as needed.) (negative) 200 2.601 2.345 1.972 1.653 1.286 300 2.592 2.339 1.968 1.650 1.284 300 c. Give a brief general description of the number of degrees of freed 1.284 400 400 2.588 2.336 1.96 1.64 500 500 2.586 2.334 1.965 1.648 1.283 O A. The number of degrees of freedom for a collection of sample 1000 2.581 2.330 1.962 1.646 1.282 1000 2000 2.578 2.328 1.961 1.646 1.282 2000 O B. The number of degrees of freedom for a collection of sample 1.282 Large Large 2.576 2.326 1.960 1.645 O C. The number of degrees of freedom for a collection of sample Degrees of Area In One Tall Degrees of 0.01 0.025 0.05 0.10 Freedom 0.005 Freedom O D. The number of degrees of freedom for a collection of sample Print Done ? Click to select your answer(s)
