PDF Expert File Edit View Annotate Edit PDF Go Window Help O X 72% Tue 11:52 AM QE 0 88 81% Annotate TI Edit X STA2220Test1S2020 + A AA OOTO Course Hero Course Hero Course Hero Course Hero + X 3. (2+4+4+4+4 =18pts) Golf courses in Arizona are watered regularly to keep the fairways and greens pleasing and playable. However, high levels of dissolved salts in the water can harm the course. The following data on Arizona golf courses were obtained to investigate Active the relationship between amount of sodium (Amount of Na) in the water measured in mEq/L and the total dissolved salt (TDS) measured in mg/L. Amount of Na, X: 4.1 5.4 4.0 6.2 8.6 9.6 14.3 10.1 12.3 13.4 11.3 st solution TDS Y: 450 672 740 860 1307 891 1190 1676 1512 2700 2398 You may use the following already calculated quantities if you need to: Zilli = 99.3, Ell Zizi yi = 14396, En(xi - x)2 = 135.162, El, (yi - y)2 = 5154600.182, Eil(Ti - x)(yi - y) = 19422.582. (a) Compute the means and standard deviations of X-data as well as Y-data. Clearly show your work. 2 pages >