A study asked respondents, "If ever married, how old were you when you first married?" The results are summarized in the technology excerpt that follows. Complete parts (a) through (d) below....


A study asked respondents,

Extracted text: A study asked respondents, "If ever married, how old were you when you first married?" The results are summarized in the technology excerpt that follows. Complete parts (a) through (d) below. One-Sample T: AGEWED Mean StDev SE Mean Variable 95.0% CI AGEWED 26970 22.530 4.712 0.029 (22.474, 22.586) Click the icon to view the table of critical t-values. (a) Use the summary to determine the point estimate of the population mean and margin of error for the confidence interval. x= 22.530 (Type an integer or a decimal. Do not round.) E= 0.056 (Type an integer or a decimal. Do not round.) (b) Interpret the confidence interval. A. One can be 95% confident that the mean age of people when first married is between 22.474 and 22.586 years. B. There is a 95% probability that the mean age of people when first married is between 22.474 and 22.586 years. C. There is a 95% probability that the mean age of people when first married is 22.530 years. D. One can be 95% confident that the mean age of people when first married is 22.530 years. (c) Verify the results by computing a 95% confidence interval with the information provided. Begin with the lower bound. 4.712 (Round to three decimal places as needed.)
Table of Critical t-Values<br>Area in<br>right tail<br>t-Distribution<br>Area in Right Tail<br>Degrees of<br>Freedom<br>0.25<br>0.20<br>0.15<br>0.10<br>0.05<br>0.025<br>0.02<br>0.01<br>0.005<br>0.0025<br>0.001<br>0.00<br>1.376<br>1.061<br>0.978<br>1.963<br>1.386<br>1.250<br>1.190<br>1.156<br>3.078<br>15.894<br>4.849<br>3.482<br>31.821<br>6.965<br>4.541<br>3.747<br>3.365<br>63.657<br>9.925<br>5.841<br>4.604<br>4.032<br>1<br>1.000<br>0.816<br>0.765<br>0.741<br>6.314<br>2.920<br>2.353<br>2.132<br>2.015<br>12.706<br>4.303<br>3.182<br>127.321<br>14.089<br>7.453<br>5.598<br>4.773<br>318.309 636.6<br>22.327<br>10.215<br>7173<br>5.893<br>2<br>31.5<br>1.886<br>1.638<br>1.533<br>1.476<br>12.9<br>8.6<br>6.8<br>2.999<br>2.757<br>4<br>0.941<br>0.920<br>2.776<br>5<br>0.727<br>2.571<br>0.718<br>0.711<br>0.706<br>1.440<br>1.415<br>1.397<br>1.383<br>1.372<br>1.943<br>1.895<br>1.860<br>1.833<br>1.812<br>2.612<br>2.517<br>2.449<br>2.398<br>2.359<br>5.9<br>5.4<br>5.0<br>3.707<br>3.499<br>0.906<br>0.896<br>0.889<br>0.883<br>1.134<br>1.119<br>1.108<br>1.100<br>1.093<br>2.447<br>2.365<br>2.306<br>2.262<br>2.228<br>3.143<br>2.998<br>2.896<br>2.821<br>2.764<br>4.317<br>4.029<br>3.833<br>3.690<br>3.581<br>5.208<br>4.785<br>4.501<br>4.297<br>4.144<br>7<br>0.703<br>0.700<br>3.355<br>3.250<br>3.169<br>4.7<br>10<br>0.879<br>4.5<br>1.796<br>1.782<br>0.876<br>0.873<br>0.870<br>0.868<br>0.866<br>1.363<br>1.356<br>1.350<br>1.345<br>2.201<br>2.179<br>2.160<br>2.145<br>2.131<br>2.328<br>2.303<br>2.282<br>2.264<br>2.249<br>2.718<br>2.681<br>2.650<br>2.624<br>2.602<br>3.106<br>3.055<br>11<br>12<br>13<br>14<br>15<br>3.497<br>3.428<br>3.372<br>3.326<br>3.286<br>4.025<br>3.930<br>3.852<br>3.787<br>3.733<br>0.697<br>0.695<br>0.694<br>0.692<br>0.691<br>1.088<br>1.083<br>1.079<br>1.076<br>1.771<br>1.761<br>1.753<br>3.012<br>2.977<br>2.947<br>4.4<br>4.3<br>4.2<br>4.1-<br>4.0<br>1.074<br>1.341<br>1.337<br>1.333<br>1.330<br>1.328<br>1.325<br>2.583<br>2.567<br>2.552<br>2.539<br>2.528<br>2.921<br>2.898<br>3.252<br>3.222<br>3.197<br>3.174<br>3.153<br>0.690<br>0.689<br>0.865<br>0.863<br>0.862<br>0.861<br>0.860<br>1.071<br>1.069<br>1.067<br>1.066<br>1.064<br>2.235<br>2.224<br>2.214<br>2.205<br>2.197<br>3.686<br>16<br>17<br>18<br>19<br>20<br>0.688<br>0.688<br>0.687<br>1.746<br>1.740<br>1.734<br>1.729<br>1.725<br>2.120<br>2.110<br>2.101<br>2.093<br>2.086<br>2.878<br>2.861<br>2.845<br>3.646<br>3.610<br>3.579<br>3.552<br>4.0<br>3.9<br>3.9<br>3.8<br>3.8<br>0.686<br>0.686<br>0.685<br>0.685<br>0.684<br>1.721<br>1.717<br>1.714<br>1.711<br>1.708<br>2.080<br>2.074<br>2.069<br>2.064<br>2.060<br>2.189<br>2.183<br>2.177<br>2.172<br>2.167<br>2.518<br>2.508<br>2.500<br>2.492<br>2.485<br>3.8<br>3.7<br>3.7<br>3.7-<br>3.7<br>2.831<br>3.135<br>3.119<br>3.104<br>3.091<br>3.078<br>3.527<br>21<br>22<br>23<br>24<br>25<br>0.859<br>0.858<br>0.858<br>0.857<br>0.856<br>1.063<br>1.061<br>1.060<br>1.059<br>1.058<br>1.323<br>1.321<br>1.319<br>1.318<br>1.316<br>2.819<br>2.807<br>2.797<br>2.787<br>3.505<br>3.485<br>3.467<br>3.450<br>0.856<br>0.855<br>0.855<br>1.058<br>1.057<br>1.056<br>2.056<br>2.052<br>2.162<br>2.158<br>2.154<br>2.479<br>2.473<br>2.467<br>3.067<br>3.057<br>3.047<br>3.7<br>3.6<br>3.6<br>3.435<br>26<br>27<br>28<br>0.684<br>0.684<br>0.683<br>1.315<br>1.314<br>1.313<br>1.706<br>1.703<br>1.701<br>2.779<br>2.771<br>2.763<br>3.421<br>3.408<br>2.048<br>

Extracted text: Table of Critical t-Values Area in right tail t-Distribution Area in Right Tail Degrees of Freedom 0.25 0.20 0.15 0.10 0.05 0.025 0.02 0.01 0.005 0.0025 0.001 0.00 1.376 1.061 0.978 1.963 1.386 1.250 1.190 1.156 3.078 15.894 4.849 3.482 31.821 6.965 4.541 3.747 3.365 63.657 9.925 5.841 4.604 4.032 1 1.000 0.816 0.765 0.741 6.314 2.920 2.353 2.132 2.015 12.706 4.303 3.182 127.321 14.089 7.453 5.598 4.773 318.309 636.6 22.327 10.215 7173 5.893 2 31.5 1.886 1.638 1.533 1.476 12.9 8.6 6.8 2.999 2.757 4 0.941 0.920 2.776 5 0.727 2.571 0.718 0.711 0.706 1.440 1.415 1.397 1.383 1.372 1.943 1.895 1.860 1.833 1.812 2.612 2.517 2.449 2.398 2.359 5.9 5.4 5.0 3.707 3.499 0.906 0.896 0.889 0.883 1.134 1.119 1.108 1.100 1.093 2.447 2.365 2.306 2.262 2.228 3.143 2.998 2.896 2.821 2.764 4.317 4.029 3.833 3.690 3.581 5.208 4.785 4.501 4.297 4.144 7 0.703 0.700 3.355 3.250 3.169 4.7 10 0.879 4.5 1.796 1.782 0.876 0.873 0.870 0.868 0.866 1.363 1.356 1.350 1.345 2.201 2.179 2.160 2.145 2.131 2.328 2.303 2.282 2.264 2.249 2.718 2.681 2.650 2.624 2.602 3.106 3.055 11 12 13 14 15 3.497 3.428 3.372 3.326 3.286 4.025 3.930 3.852 3.787 3.733 0.697 0.695 0.694 0.692 0.691 1.088 1.083 1.079 1.076 1.771 1.761 1.753 3.012 2.977 2.947 4.4 4.3 4.2 4.1- 4.0 1.074 1.341 1.337 1.333 1.330 1.328 1.325 2.583 2.567 2.552 2.539 2.528 2.921 2.898 3.252 3.222 3.197 3.174 3.153 0.690 0.689 0.865 0.863 0.862 0.861 0.860 1.071 1.069 1.067 1.066 1.064 2.235 2.224 2.214 2.205 2.197 3.686 16 17 18 19 20 0.688 0.688 0.687 1.746 1.740 1.734 1.729 1.725 2.120 2.110 2.101 2.093 2.086 2.878 2.861 2.845 3.646 3.610 3.579 3.552 4.0 3.9 3.9 3.8 3.8 0.686 0.686 0.685 0.685 0.684 1.721 1.717 1.714 1.711 1.708 2.080 2.074 2.069 2.064 2.060 2.189 2.183 2.177 2.172 2.167 2.518 2.508 2.500 2.492 2.485 3.8 3.7 3.7 3.7- 3.7 2.831 3.135 3.119 3.104 3.091 3.078 3.527 21 22 23 24 25 0.859 0.858 0.858 0.857 0.856 1.063 1.061 1.060 1.059 1.058 1.323 1.321 1.319 1.318 1.316 2.819 2.807 2.797 2.787 3.505 3.485 3.467 3.450 0.856 0.855 0.855 1.058 1.057 1.056 2.056 2.052 2.162 2.158 2.154 2.479 2.473 2.467 3.067 3.057 3.047 3.7 3.6 3.6 3.435 26 27 28 0.684 0.684 0.683 1.315 1.314 1.313 1.706 1.703 1.701 2.779 2.771 2.763 3.421 3.408 2.048
Jun 02, 2022
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