Is the Rookie Ready Essay - 884 Words

STATISTICS HOMEWORK PROBLEM 1 Part of a usability study to assess the usability of voting machines included a measure of the time on task (TOT) of voters casting ballots. The data are for the same ballot cast on two different voting machines at the same location. A few background items: * The voters (participants/users) are a homogeneous group. * Voters were randomly assigned to theo vting machines. * Due to items 1 and 2 above, assume the two groups of voters (one group using the DRE voting machine, and the other using the OptiScan voting machine) have equal variances. * We have no information to indicate that one voting machine will be faster than the other. Your job will be to†¦show more content†¦Problem 2 Part of a usability study of programmable thermostats, the time on task for a series of task performed for each user was recorded. A few background items: * The participants/users are a homogeneous group. * The participants were randomly assigned to each group. * Due to items 1 and 2 above, assume the two groups of participants have equal variances. * We have no information to indicate that one time on task for one group will be faster than the other. Your job will be to perform a â€Å"t† test on these data and draw whatever conclusions you believe you can get from the data. If you need a refresher of the â€Å"t† test, read the â€Å"t-test description.pdf† document. If you need more information, check your statistics book, or use the Internet to find web sites such as http://www.graphpad.com/quickcalcs/ttest1.cfm. (Excel has a â€Å"t† test function although it may not be currently installed in your version; you would then add it in.) Question1 – What is the null hypothesis in this evaluation? Time for each task on thermostat takes the same time Question 2 – Which â€Å"t† test should be used – paired, unpaired/equal variance, unpaired/unequal variance? Unpaired/equal variance shouldShow MoreRelatedEssay on Is the Rookie Ready Case Study622 Words   |  3 PagesMemo 1: â€Å"Is the Rookie Ready?† This dilemma Tim has put himself in was a mistake for many reasons. When Hybara called back to become a client of Driscoll, Tim should had let them know of a more reasonable time frame. If they resisted, just let Hybara know that it takes time to set up a proper system that will not fail. Also Tim should have taken some time to check with the companies executives to see if this is a project worth taking on and if it is achievable in the time frame available. OfRead MoreWhat Is The Undrafted Rookie Essay1307 Words   |  6 PagesUndrafted Rookie At the Jordan Proving Ground 6ft undrafted rookie Andruw Paden from Michigan St was about to put on a show for the scouts. 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This is because cigarette smoking leads to a rapid addiction for nicotine and is as addictive as alcohol and cocaine. Also, the placebo pleasures associated with smoking like stress relief, calmness and weight loss