Question

27.42 Does playing video games make better surgeons? ANOVA. In laparoscopic surgery, a video camera and several thin instruments are inserted into the patient's abdominal cavity. The surgeon uses the im- age from the video camera positioned inside the pa- tient's body to perform the procedure by manipulat- ing the instruments that have been inserted. The Top Gun Laparoscopic Skills and Suturing Program was developed to help surgeons develop the skill set nec- essary for laparoscopic surgery. Because of the simi- larity in many of the skills involved in video games and laparoscopic surgery, it was hypothesized that surgeons with greater prior video game experience might acquire the skills required in laparoscopic sur- gery more easily. Thirty-three surgeons participated in the study and were classified into three catego- ries-never used, under three hours, and three or more hours-depending on the number of hours they played video games at the height of their video game use. They also performed Top Gun drills and received a score based on the time to complete the drill and the number of errors made, with lower 4 step

Answer 1

8 9 10 11 12 15 16 17 18 19 22 23 24 25 26 29 30 31 WEDNESDAY Ansons) .. Pake:) 3/12/2017 We have three taceatment df for treatment -3-1=2 Total mo.cf absequations. N= 33 de for total eno=33-1 =32 ..powdf for 2010181 = CdA Pay tobal — df to treatment) = 30 Now Sem squage for betrocem 99oup (treatment) Hmme Dia 15, N2=9 € 93.59. E VO 89752248777, Eds=430.86 6793:13.73...22 = 5419.6667 428.- 4.787.3333. & Grand mean = x + 12 + As... 3 = 6.793:1873.+ 5919.6667+ 4787.3333 3 17000-13333 .5666.2.714 (5667) ... 3 Sum of square for blo Group = N; (& (2-7) e =_15% (6793. 1373 - 5667)9 +{9x2.5419-666-566.)33+ 9x. (478.7, 333 – 56.6.7.)27 = (25157256..5090 Sum of squage for toba). Symn of Souane blo Goncup et sum of squaire with in Group...

2019 THURSDAY - Sun & Sua a teth1 Songạt mu 8 9 10 11 12 13 15 16 17 18 19 20 22 23 24 25 26 27 29 30 2193.79-6793.1333)2+(8362–6793, 1333)2 + (5947– 6793 1333)] +. ..........5540-5419-666)2 + (6259- 5419 666)+(57/6 - 5419.666)27 +77288.– 4783. 333)2 +Cydlo- 9783.333) +(37.58 - 4787.87 2 766.9532) 7333) .... SST = 2515.7256.5092+76645321.1333 ... 10.180 2578-24991). A.du Mean Squa.fotong. Membblo Group) ... SS felbw. Gooyl de fer bl.w. Goroup = 2515.7256..5091/2 - 012578628. 25457 Mean Suara Belcolho Gregel emera) = SS. cithin Goal. de for within GuayP 7.6645321.7333) 20 25.548.44.0578.) ..NOW F duculate = ms 68 bw Gooyp ...........lothio Gap ../2578628.2545 25.54844.8578 € 4.92394)

FRIDAY 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 ANOVA) Source I dF L SS I Ms F Bl.co Golem 2 25157856.5091 19578678.2545 4.92844. Lanthim.Gone | 30 176645321.73332654844.0578 T069 32 101802578-2424 ..-value foram 666 = 0.014155 ..dis 005 level of significance To fest. ...H All foralmente que equal .. (u= 42=48=0) is Her At least one foregt ment is different Cuito) i 21,2,3... Test statistic :-). Fa 4,92344. Decision of p-Uarte < we geject Ho ..Conclusom Here we q.cape Hi there is at.0e9st one tocat. Mellt which is different Tem meam for New CD played under three hours & thoire (81) mole hoygis have different mean....