The article “Career Expert Provides DOs and DON’Ts for Job Seekers on Social Networking” (CareerBuilder.com, August 19, 2009) included data from a survey of 2667 hiring managers and human resource professionals. The article noted that many employers are using social networks to screen job applicants and that this practice is becoming more common. Of the 2667 people who participated in the survey, 1200 indicated that they use social networking sites (such as Facebook, MySpace, and LinkedIn) to research job appli- cants. For the purposes of this exercise, assume that the sample is representative of hiring managers and human resource professionals. Construct and interpret a 95% confidence interval for the proportion of hiring managers and human resource professionals who use social networking sites to research job applicants.
Answer to relevant QuestionsThe article “Nine Out of Ten Drivers Admit in Survey to Having Done Something Dangerous” (Knight Ridder Newspapers, July 8, 2005) reported the results of a survey of 1100 drivers. Of those surveyed, 990 admitted to ...Why is an unbiased statistic generally preferred over a biased statistic for estimating a population characteristic? Does unbiasedness alone guarantee that the estimate will be close to the true value? Explain. Under what ...One thousand randomly selected adult Americans participated in a survey conducted by the Associated Press (June 2006). When asked “Do you think it is sometimes justified to lie or do you think lying is never justified?” ...Given a variable that has a t distribution with the specified degrees of freedom, what percentage of the time will its value fall in the indicated region? a. 10 df, between - 1.81 and 1.81 b. 10 df, between - 2.23 and ...The authors of the paper “Driven to Distraction” (Psychological Science : 462–466) describe an experiment to evaluate the effect of using a cell phone on reaction time. Subjects were asked to perform a simulated ...
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