What is the Dependent Variable of the study?* Fast Food Group Number of Burgers Calories Popularity
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- A university dean is interested in determining the proportion of students who recieve some sor of financial aid. Rather than examine the records for all students, the dean randomly selects 200 students and finds that 118 of them are receiving financial aid. If the dean wanted to estimate the proportion of all students receiving financial aid to within 4% with 90% reliabilty, how many students would need to be sampled?At a TV assembling facility, the Quality Assurance (QA) department tested a random selection of 500 TV's assembled in March. The tested TV's had an average retail price of $475, 2.4% had some type of defect, and 7 did not power up at all. The plant manager compared that to the total 6753 of TV's that were assembled during the month of March. They had an average retail price of $395 , 3.2% had been reported defective by customers, and did not power up at all. For the QA department's tests, identify the population and the sample. Choose whether each number described below is a parameter or a statistic for the QA department's tests. Number Parameter Statistic The 7 TV's of the random selection of 500 TV's that did not power up at all The 2.4% of the random selection of 500 TV's found to be defective The average retail price of $395 of all the TV's assembled during the month of MarchAccording to the February 2008 Federal Trade Commission report on consumerfraud and identity theft, 23% of all complaints in 2007 were for identity theft. Inthat year, Arkansas had 1,601 complaints of identity theft out of 3,482 consumercomplaints ("Consumer fraud and," 2008). Does this data provide enoughevidence to show that Arkansas had a higher proportion of identity theft than23%? Test at the 5% level.