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Lethbridge Herald Newspaper Archives

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Lethbridge Herald, The (Newspaper) - October 15, 1974, Lethbridge, Alberta TiiMdqr, October IB, 1974 THE UETHBRIDQE HERALD 11 Statistics, computers and research By G. C. KOZUB Lethbridge Research Station BtatisttdaB Statistics, to the sports fan, are the records of his sport and to the car fan- cier, they are the perfor- mance data on a car! To a researcher, however, statistics is more than columns of figures it includes the design of ex- periments and the analysis and interpretation of numerical data. Statistical design and analysis are important tools for research workers in the biological and agricultural sciences that help ensure that valid inferences are made from an experiment. If a proper design is not used, the assumptions on 'which the statistical methods of analysis are based may not be fulfilled. This affects the confidence that can be placed on the results. In many cases, several methods of analysis-may be possible; the most appropriate will be chosen on the basis of the objec- tives of the experiment. Intrepretation of the results is the final step in the analysis. Although a fairly simple analysis may be all that is necessary, results that would otherwise have been lost may become apparent when more complex analyses are used. Complex, analyses, and even simple analyses when large amounts of data are involved, could take months by hand or weeks on a desk calculator. Southern 4-H news Sixty 4-H six from each province, attended a national 4-H en- vironmental conference entitled Strategies for Sur- vival at McMaster Univer- sity, Hamilton, Ont Aug. 25-29. Keith Nishi. from Bow Island 4-H Multi Field Crops Club was- one of the delegates chosen to attend this conference. During the conference, major topics of inter- national interest were dis- cussed. These were pop- ulation, food- production, non-renewable resources, management of the en- vironment and in- dustrialization. The program moderator for the conference was Ken Lefolii of the CTV televi- sion network. The sessions began with the tophref population. The guest speaker was Prof. Milton Freeman of McMaster University, who said that our global problem of overpopulation is interlinked with food production, the use of our natural resources, pollu- tion and industrialization. He stressed the impor- tance of curbing oar needs, giving the underdeveloped countries an opportunity to raise their standard of living. The second speaker was Douglas Daniels, an economist with I.D.R.C., who talked about- food production. Ronald Ritchie, ex vice president of the Imperial Oil Company, was the third speaker. During his talk on non renewable resources, Mr. Ritchie said that Canada must develop new resources of energy to re- main economically sound. With research, Canada will have energy for centuries. Dr. John Robinson, of Guelph University; stress- ed that agriculture is the chief source of pollution. He pointed out that fanners unintentionally contaminate water sources witii chemical fertilizers. farmer has the choice of maximum crop yield or contamination of the en- vironment, said Dr. Robin- son. The delegates were in- formed that for a man to live without affecting his environment it .would re- quire 1300 acres for each person rather than the one acre per person which is the present rate. He predicted that in the future, it would be more profitable for a farmer to sell his grain than to use it to produce animal protein. Dr. Robinson commented that this could mean higher meat prices. The final speaker of the program was Larry Higgins, an economist with Ontario Hydro. He addressed the 4-H delegates on 'in- dustrialization. The pur- pose of economic development, he said, is to provide the individual with the opportunity to control the life he wants to live. Glenwood 4-H club recently elected a new slate of officers: president, Valerie Oviatt; vice president, Linda Asuchalk; secretary, Colleen Lybent; treasurer, Perry Chalmers; club reporter, Wendy Tallow. The meeting schedule designates the first Thurs- day each month for sewing and the second Thursday for business. Marty Atkinson reported on the plant science seminar at Olds recently at a meeting of Barons Noble 4-H club. An achievement day has been scheduled for Oct. 25 at 7 p.m. in NoMe Central School auditorium. ED Simmental Breeders Cardston Ltd. P.O. Box 537, Cardston, Alberta, Canada. TOK OKO H onto of tnasa GraatSiras PARISIEN GALANT FLORIAN BEAT SULTAN Your enquiries are invited regarding Purebred and percentage animals for sale. Now calculations can be done by a computer in frac- tions of a second. A com- puter can also be used to organize large amounts of data'. This allows scientists and their assistants more time to 'interpret the results and plan and carry out subsequent ex- periments. In addition, investigations can be ex- tended, because more fac- tors can be considered and more precise methods can be used' A relatively recent development that involves statistics has been the for- mulation of simulation models. These models are really complax mathematical equations used to describe biological, or agricultural, systems. Once the model has been shown to work using observed measurements, it may be used to predict what'Trill happen hi un- known situations. Again, modelling would be virtual- ly impossible without com- puters. .It is not necessary for each research establish- ment to have its own com- puter. For example, the Lethbridge Research Sta- tion uses a commercial computer -in Calgary, which is fed with data and' controlled remote terminal at the station. The connection between the station and .the com- puter is through the telephone system. In this way, the station can share the computer with other users. ORBIT POWER HIGH TORQUE SLOW SPEED POWER SPECIFICATIONS ORBIT MOTOR WITH GEROTOR _ raroror 111S 4.5 Tf T JS 549 10.3 15 120 11.9 278 14.9 15 219 15 182 23J -g 15 T37 TOAD UNIT THRUST LOAD LIMIT ttJ. WBCHT to. 500 1000 JOO 1000 iTTTT 500 1000 11 500 1000 12 12 500 13 1000 500 1000 13 13 SPECIFICATIONS SHOWN ARE FOR MAXIMUM PERFORMANCE AVAILABLE AT OUVER INDUSTRIAL SUPPLY LTD. 239-36 SL North Phom 327-15711 or contact 'OLIVER you. DISC BRAKE SERVICE CENTRE HMcMfW DISC ROTORS and stock Rotors, Braka Pads, and Rapair Parta for Disc Brakasl BRAKE DRUM MACHINING AND GRINDING Naw Drums, Ovafstaa Braka Linings and Braka FAST SERVICE! far CMBBjaJa ajajaili I WvOnW BAALIM WHOLESALE LTD, 205- 10th Streat South- tfciGARASE ir SBMCE STATION NEAREST YOUI ;