Please help me solve question3. I need the matlab code solving for this question. I have already taken a screenshot for hw9-3.csv as 'ty and ty1,ty2,ty3,ty4'. And the question is 'tyy'. I would give a 'helpful' rate for your answer. Thanks for your help.

HW9-3 X AutoSave Off H Search 1462560186@qq.com 0 File Home Insert Draw Page Layout Formulas Data Review View Help Share Comments X Calibri v 11 % Conditional Formatting I U ~ A A Alignment Number Format as Table Cells Editing Ideas Sensitivity Paste Ch A Cell Styles Ideas Clipboard Font Styles Sensitivity Some features might be lost if you save this workbook in the comma-delimited (.csv) format. To preserve these features, save it POSSIBLE DATA LOSS Don't show again Save As... X in an Excel file format. A1 X V x1 B C D E F G H K L M N O P Q A 1 x 1 X2 x3 y 50 19 4 27.464 W N 90 38 8 49.303 70 28 6.5 37.461 UI A 70 25 5.5 36.478 6 60 26 6.5 33.776 70 29 5 35.092 10 00 - 60 23 5.5 31.307 70 28 5.5 37.863 10 34 6.5 41.109 11 70 26 4.5 28.605 12 70 26 8 35.917 13 70 26 8 33.489 14 60 30 5 31.381 15 60 26 7 38.067 16 70 25 7.5 31.278 17 70 31 5.5 32.172 18 60 27 7.5 36.109 19 60 72 6 21 525 HW9-3X AutoSave O Off HW9-3 O Search 1462560186@qq.com File Home Insert Draw Page Layout Formulas Data Review View Help Share Comments Calibri v 11 % Conditional Formatting Cells Editing B I U A A Alignment Number Format as Table Ideas Sensitivity Paste Cell Styles Styles Ideas Sensitivity A Clipboard IN Font Some features might be lost if you save this workbook in the comma-delimited (.csv) format. To preserve these features, save it Don't show again Save As... X i POSSIBLE DATA LOSS in an Excel file format. A1 X V fx x1 F G H K L M N O P Q A B C D E 19 60 23 6 31.535 20 60 23 6 33.875 21 60 24 37.637 22 70 31 5.5 40.263 23 80 32 6 36.694 24 60 26 10 45.62 25 70 28 4.5 38.571 26 60 24 4 19.163 27 50 21 7 31.962 28 50 17 2 23.147 29 80 34 3.5 40.278 30 70 27 5.5 32.725 31 60 24 2.5 28.735 32 70 27 10 38.241 33 80 32 6.5 34.635 34 50 26 9 44.963 35 50 22 4 30.012 36 80 34 6.5 41.077 37 50 10 41 064 HW9-3 (+ - + 100%AutoSave O Off H HW9-3 O Search 1462560186@qq.com 18 File Home Insert Draw Page Layout Formulas Data Review View Help Share Comments Calibri v 11 % Conditional Formatting B I U v A Alignment Number Format as Table Cells Editing Ideas Sensitivity Paste A Cell Styles ~ Clipboard Font Styles Ideas Sensitivity Some features might be lost if you save this workbook in the comma-delimited (.csv) format. To preserve these features, save it i POSSIBLE DATA LOSS Don't show again Save As... in an Excel file format. A1 X v fix x1 B C D E F G H K L M N O P A Q 37 50 21 10 41.964 38 80 34 7.5 44.152 39 60 22 2.5 29.901 40 60 24 5 26.706 41 60 23 4 28.602 42 60 29 6.5 33.401 43 70 27 7.5 41.324 44 70 32 4 24 45 60 25 5.5 38.158 46 60 26 3.5 25.412 47 70 28 7.5 37.671 48 60 22 5.5 27.979 49 60 22 4.5 31.079 50 60 27 7 30.778 51 60 25 6 28.221 52 60 23 6.5 30.495 53 60 27 7.5 38.71 54 80 31 4.5 27.581 55 26 15 28 705 HW9-3 + 1AutoSave O Off HW9-3 O Search 1462560186@qq.com X Comments File Home Insert Draw Page Layout Formulas Data Review View Help Share Calibri v 11 = % Conditional Formatting Cells Editing B I U v A A Alignment Number Format as Table Ideas Sensitivity Paste A Cell Styles Font Styles Ideas Sensitivity Clipboard Some features might be lost if you save this workbook in the comma-delimited (.csv) format. To preserve these features, save it X i POSSIBLE DATA LOSS Don't show again Save As... in an Excel file format. A1 X V x1 P Q A B C D E F G H K L M N O 55 80 36 4.5 38.705 56 60 22 7.5 40.525 57 70 28 4.5 29.42 58 60 26 7 37.898 59 60 25 7 40.34 60 60 24 5 27.891 61 70 32 7.5 38.259 62 70 31 6 35.091 63 60 23 7 34.372 64 50 19 6 26.481 65 60 22 7.5 36.739 66 70 30 9.5 36.185 67 70 25 8 38.725 68 50 17 9.5 32.707 69 70 28 7 32.563 70 60 25 5.5 36.006 71 70 25 5.5 33.127 72 70 29 5 32.941 72 70 20 65 23 65 HW9-3 (+AutoSave O Off ) HW9-3 O Search 1462560186@qq.com File Home Insert Draw Page Layout Formulas Data Review View Help Sha Calibri v 11 General Conditional Formatting Insert E v Ov B I U A A $ Format as Table Ex Delete Ideas Paste .00 Cell Styles [ Format A N Font Styles Cells Editing Clipboard Alignment Number Ideas Don't show again Save As... i POSSIBLE DATA LOSS Some features might be lost if you save this workbook in the comma-delimited (.csv) format. To preserve these features, save it in an Excel file format. A1 X V fx x1 T A B C D E F G H K L M N O P Q R S U 73 70 29 6.5 33.65 74 50 19 4.5 34.192 75 60 24 6.5 24.115 76 60 26 7.5 37.614 77 60 28 6 29.612 78 60 22 6.5 39.106 79 60 28 7.5 36.974 80 60 25 4 28.334 81 50 20 8.5 33.767 82 60 26 9.5 38.358 83 60 25 4 33.381 84 60 29 4 37.672 85 70 30 6 36.615 86 60 26 39.351 87 60 24 6.5 38.611 88 60 25 6 36.46 89 60 24 5.5 23.449 90 60 24 5 23.027 91 70 26 8 31.372 923. The file HW9-3. csv consist of yield measurements from many runs of a chem- ical reaction. The quantities varied were the temperature in 'C (x1), the concentration of the primary reactant in % (x2), and the duration of the re- action in hours (x3). The dependent variable (y) is the fraction converted to the desired product. (a) Fit the linear model predicting y from the three variables without inter- actions or quadratic terms. (b) Two of the variables in this model have coefficients significantly different from 0 at the 15% level. Fit a linear regression model containing these two variables. (c) Compute the product (interaction) of the two variables referred to in part (b). Fit the model that contains the two variables along with the interaction term. (d) Based on the results in parts (a) through (c), specify a model that appears to be good for predicting y from X1, T2, and T3. (e) Might it be possible to construct an equally good or better model in another way