Please help me for the question2. I need the matlab code solving for this question. I have already taken a screenshot of hw9-2.csv as an1.png. I would give a 'helpful' rate for your answer. Thanks for your help.

2. The file HW9-2. csv presents measurements of mean noise levels in dBA (y), roadway width in m (21), and mean speed in km/h (x2), for 10 locations in Bangkok, Thailand, as reported in the article "Modeling of Urban Area Stop- and-Go Traffic Noise" (P. Pamanikabud and C. Tharasawatipipat, Journal of Transportation Engineering, 1999:152-159). Construct a good linear model to predict mean noise levels using roadway width, mean speed, or both, as predictors. Provide the standard deviations of the coefficient estimates and the P-values for testing that they are different from 0. Explain how you chose your model.AutoSave O Off H HW9-2 Search 1462560186@qq.com File Home Insert Draw Page Layout Formulas Data Review View Help Calibri v 11 % Conditional Formatting LA B A Alignment Number Format as Table Cells Editing Paste A Cell Styles Clipboard Font Styles Some features might be lost if you save this workbook in the comma-delimited (.csv) format. To preserve these features, save it D i POSSIBLE DATA LOSS in an Excel file format. A1 X V fix y B C D E F G H K L M A 1 V x1 x2 78.1 6 30.61 W 78.1 10 36.55 79.6 12 36.22 81 6 38.73 78.7 6.5 29.07 78.1 12 28.26 8 78.6 6.5 30.28 78.5 6.5 30.25 10 78.4 9 29.03 11 79.6 6.5 33.17 12 13 14 15 16 17 18 10 HW9-2 +