Monday, November 4, 2013

Comparing The Life Expectancy In `c` And` D` Batteries In Toys Vs. Electronics

Comparing the life prevision in `C` and` D` batteries in toys vs electronicsBatteries type C and D have oft been compargond in quality in terms of lifespan . both(prenominal) batteries are extensively utilise in recreational devices for children (toys ) as intimately as simple household devices (electronics This s objective was to arrange whether the categoric factors of barrage type and usage epoch-makingly change the quantitative covariant of electric barrage fire life story . Similar studies nominate that this take in can be carried out by source exploitation a two-way analysis of variance to determine if in that prise are any effects at all alluvium tide from the two categorical factors mentioned and their interaction , and consequently(prenominal) conducting multiple paired t-tests in to determine si gnificance of the losss (Oswald 126 . A have of 43 barrage operated toys and 43 battery operated electronics was selected for the experiment . Each sample was powered first by battery C and consequently by battery D after the first battery had run out . The process was reversed for the next sample which was powered first by battery D and thusly by battery C . This was done to deny the fond movement of any bias in the experiment with esteem to precession . This procedure was conducted both for the toys and the electronics . The information analysis quality of Microsoft pass which was utilize extensively in this offers an excellent public-service corporation for cipher the necessary descriptive and inferential statistics and for creating charts to facilitate burst report of results (Simon 48 slacken 1 presents raw data to be used as the sample for this experiment Chart 1 and 2 shows that in either case of usage (toys and electronics respectively , battery C ecumen ically provide higher life expectancies than! DThe descriptive data in sidestep 2 indicates a more or less conventionalism distribution with mean and standard deviation of biography for battery C 651 .49 -157 .35 for toys and 638 .70 -180 .19 . Battery D had 460 .86 -143 .
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19 for toys and 452 .47 -174 .13 . Table 2 alike supports charts 1 and 2 on the general superiority of battery C as compared to battery D . Average lifetime for both batteries were noned to be higher in toys than in electronicsThe first guess tested was is there no significant difference in the lifetime forethought of batteries in the midst of types C and D and between usages Toys and Electronics . Summary of the two-way ANOVA conducted for this hypothesis at a 95 confidence take (see table 3 ) shows that the obtained F- pry for both usage and interaction (0 .18 and 0 .01 respectively , is lower than the critical F-value of 3 .897 which means that there is no significant difference in lifetime expectancy of batteries used for toys and those used for electronics . Other the other hand , obtained F-value of 56 .52 for battery type is greater than the same critical value which indicates that there is a significant difference in lifetime expectancy of battery type C and DSince the presence of difference was not established for usage , there...If you want to get a beat essay, order it on our website: BestEssayCheap.com

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