Students Home X Connect Registration and X Question 3 - Week 4 Hom X Course Hero X New Tab X + V X C ezto.mheducation.com/ext/map/index.html?_con=con&external_browser=0&launchUrl=https%253A%252F%252Fnewconnect.mheducation.com%252F#/... LC 0 . .. Managed Bookmarks Week 4 Homework - Chapter 8 i Saved Help Save & Exit Submit Check my work 3 For the first six months of the year, an analyst records the monthly closing stock price (in $) for a firm as: 150, 155, 154, 159, 156, 153. (You may find it useful to reference the t table.) 20 ApictureClick here for the Excel Data File points a. Calculate the sample mean and the sample standard deviation. (Round final answer to 2 decimal places.) eBook Hint Sample mean Sample standard deviation Print References b. Calculate the 95% confidence interval for the mean stock price of the firm assuming that the stock price is normally distributed. (Round final answer to 2 decimal places.) Confidence interval to Mc Graw Hill LO New Hoffnagle Sched. Question 3 - Week 4 . 41 F Rain $ 7 () 7:17 PMStudents Home X Connect Registration and X Question 3 - Week 4 Hom X Course Hero X New Tab X + V X C ezto.mheducation.com/ext/map/index.html?_con=con&external_browser=0&launchUrl=https%253A%252F%252Fnewconnect.mheducation.com%252F#/... LC 0 . .. Managed Bookmarks Week 4 Homework - Chapter 8 i Saved Help Save & Exit Submit Check my work 3 b. Calculate the 95% confidence interval for the mean stock price of the firm assuming that the stock price is normally distributed. 20 (Round final answer to 2 decimal places.) points Confidence interval to eBook Hint Print References c. What happens to the margin of error if a higher confidence level is used for the interval estimate? The margin of error increases as the confidence level increases. O The margin of error decreases as the confidence level increases. Mc Graw LO New Hoffnagle Sched. Question 3 - Week 4 . 41 F Rain or $ 7 4) 7:17 PMStudents Home X Connect Registration X Question 3 - Week X table_2.jpg (658x13 X Course Hero X New Tab X + V X C ezto-cf-media.mheducation.com/Media/Connect_Production/bne/Jaggia_4e/using_r/table/table_2.jpg . . . Managed Bookmarks TABLE 2 Student's t Distribution Entries in this table provide the values of fay that correspond to a given upper-tail area a and a specified number of degrees of freedom df. For example, for a = 0.05 and df = 10, P(710 2 1.812) = 0.05. Area in Upper Tail, a df 0.20 0.10 0.05 0.025 0.01 0.005 1.376 3.078 6.314 12.706 31.821 63.657 1.061 1.886 2.920 4.303 6.965 9.925 0.978 1.638 2.353 3.182 4.541 5.841 0.941 1.533 2.132 2.776 3.747 4.604 0.920 1.476 2.015 2.571 3.365 4.032 0.906 1.440 1.943 2.447 3.143 3.707 0.896 1.415 1.895 2.365 2.998 3.499 0.889 1.397 1.860 2.306 2.896 3.355 0.883 1.383 1.833 2.262 2.821 3.250 0.879 1.372 1.812 2.228 2.764 3.169 1 1 0.876 1.363 1.796 2.201 2.718 3.106 12 0.873 1.356 1.782 2.179 2.681 3.055 13 0.870 1.350 1.771 2.160 2.650 3.012 14 0.868 1.345 1.761 2.145 2.624 2.977 15 0.866 1.341 1.753 2.131 2.602 2.947 16 0.865 1.337 1.746 2.120 2.583 2.921 17 0.863 1.333 1.740 2.110 2.567 2.898 18 0.862 1.330 1.734 2.101 2.552 2.878 19 0.861 1.328 1.729 2.093 2.539 2.861 20 0.860 1.325 1.725 2.086 2.528 2.845 21 0.859 1.323 1.721 2.080 2.518 2.831 22 0.858 1.321 1.717 2.074 2.508 2.819 23 0.858 1.319 1.714 2.069 2.500 2.807 LO El New Hoffnagle Sched. 9 table_2.jpg (658x136. 41OF RainFam $ 4 4) 7:18 PMStudents Home X Connect Registration X Question 3 - Week X table_2.jpg (658x13 X Course Hero X New Tab X + V X C ezto-cf-media.mheducation.com/Media/Connect_Production/bne/Jaggia_4e/using_r/table/table_2.jpg . . . Managed Bookmarks 24 0.857 1.318 1.711 2.064 2.492 2.797 25 0.856 1.316 1.708 2.060 2.485 2.787 26 0.856 1.315 1.706 2.056 2.479 2.779 27 0.855 1.314 1.703 2.052 2.473 2.771 28 0.855 1.313 1.701 2.048 2.467 2.763 29 0.854 1.311 1.699 2.045 2.462 2.756 30 0.854 1.310 1.697 2.042 2.457 2.750 31 0.853 1.309 1.696 2.040 2.453 2.744 32 0.853 1.309 1.694 2.037 2.449 2.738 33 0.853 1.308 1.692 2.035 2.445 2.733 34 0.852 1.307 1.691 2.032 2.441 2.728 35 0.852 1.306 1.690 2.030 2.438 2.724 36 0.852 1.306 1.688 2.028 2.434 2.719 37 0.851 1.305 1.687 2.026 2.431 2.715 38 0.851 1.304 1.686 2.024 2.429 2.712 39 0.851 1.304 1.685 2.023 2.426 2.708 40 0.851 1.303 1.684 2.021 2.423 2.704 41 0.850 1.303 1.683 2.020 2.421 2.701 42 0.850 1.302 1.682 2.018 2.418 2.698 43 0.850 1.302 1.681 2.017 2.416 2.695 44 0.850 1.301 1.680 2.015 2.414 2.692 45 0.850 1.301 1.679 2.014 2.412 2.690 46 0.850 1.300 1.679 2.013 2.410 2.687 47 0.849 1.300 1.678 2.012 2.408 2.685 48 0.849 1.299 1.677 2.011 2.407 2.682 49 0.849 1.299 1.677 2.010 2.405 2.680 50 0.849 1.299 1.676 2.009 2.403 2.678 51 0.849 1.298 1.675 2.008 2.402 2.676 52 0.849 1.298 1.675 2.007 2.400 2.674 53 0.848 1.298 1.674 2.006 2.399 2.672 54 0.848 1.297 1.674 2.005 2.397 2.670 55 0.848 1.297 1.673 2.004 2.396 2.668 56 0.848 1.297 1.673 2.003 2.395 2.667 57 0.848 1.297 1.672 2.002 2.394 2.665 LO New Hoffnagle Sched. A table 2.jpg (658 x 136. Raining now@1 5am $ 6 4) 7:18 PMStudents Home X Connect Registration X Question 3 - Week X table_2.jpg (658x13 X Course Hero X New Tab X + V X C ezto-cf-media.mheducation.com/Media/Connect_Production/bne/Jaggia_4e/using_r/table/table_2.jpg . . . Managed Bookmarks 35 0.852 1.306 1.690 2.030 2.438 2.724 36 0.852 1.306 1.688 2.028 2.434 2.719 37 0.851 1.305 1.687 2.026 2.431 2.715 38 0.851 1.304 1.686 2.024 2.429 2.712 39 0.851 1.304 1.685 2.023 2.426 2.708 40 0.851 1.303 1.684 2.021 2.423 2.704 41 0.850 1.303 1.683 2.020 2.421 2.701 42 0.850 1.302 1.682 2.018 2.418 2.698 43 0.850 1.302 1.681 2.017 2.416 2.695 44 0.850 1.301 1.680 2.015 2.414 2.692 45 0.850 1.301 1.679 2.014 2.412 2.690 46 0.850 1.300 1.679 2.013 2.410 2.687 47 0.849 1.300 1.678 2.012 2.408 2.685 48 0.849 1.299 1.677 2.011 2.407 2.682 49 0.849 1.299 1.677 2.010 2.405 2.680 50 0.849 1.299 1.676 2.009 2.403 2.678 51 0.849 1.298 1.675 2.008 2.402 2.676 52 0.849 1.298 1.675 2.007 2.400 2.674 53 0.848 1.298 1.674 2.006 2.399 2.672 54 0.848 1.297 1.674 2.005 2.397 2.670 55 0.848 1.297 1.673 2.004 2.396 2.668 56 0.848 1.297 1.673 2.003 2.395 2.667 57 0.848 1.297 1.672 2.002 2.394 2.665 58 0.848 1.296 1.672 2.002 2.392 2.663 59 0.848 1.296 1.671 2.001 2.391 2.662 60 0.848 1.296 1.671 2.000 2.390 2.660 80 0.846 1.292 1.664 1.990 2.374 2.639 100 0.845 1.290 1.660 1.984 2.364 2.626 150 0.844 1.287 1.655 1.976 2.351 2.609 200 0.843 1.286 1.653 1.972 2.345 2.601 500 0.842 1.283 1.648 1.965 2.334 2.586 1000 0.842 1.282 1.646 1.962 2.330 2.581 0.842 1.282 1.645 1.960 2.326 2.576 Source: / values calculated with Excel LO El New Hoffnagle Sched. table_2.jpg (658x136. Raining now@15m $ 6 4) 7:18 PMCh8_Q31_Data_File_v16.xlsx [Protected View] - Excel X File Home Insert Page Layout Formulas Data Review View Tell me what you want to do. PAIGE BERGER & Share i PROTECTED VIEW Be careful-files from the Internet can contain viruses. Unless you need to edit, it's safer to stay in Protected View. Enable Editing X J22 X fx A B C D E F G H K L M N O P Q R S Stock Price 150 155 154 159 156 153 00 10 11 WN 14 16 17 18 19 20 21 22 23 24 25 ac Stock Price + Ready + 100% LO New Hoffnagle Sched. New Tab - Google Chr. x 1 Ch8_Q31_Data_File_v1. Raining now@ $ 7 4) 7:19 PM