In a survey conducted among a random sample of college students, participants were asked, “How many hours per week do you use the Internet?” Sample sizes and average responses by race/ethnic group are given below. Assume sample standard deviations were as shown in the table.
Use one-way analysis of variance to determine if there is sufficient sample evidence to reject a “no difference in population mean Internet times” null hypothesis at the 5% significance level.
Answer to relevant QuestionsIn the survey described in Exercise 32, student responses were also classified by year in college. The table below shows the average time on the Internet for the sample of students in each of the class years, as reported in ...Golden Crest is testing two alternative order processing systems. System 1 processes orders on a simple “first come, first served” basis. System 2 uses a more sophisticated simulation based technique. Using a sample of ...A random sample of size 25 from normal population A has a variance of 140. A random sample of size 8 from normal population B has a variance of 165. Test the hypothesis that the variance of population A is equal to the ...From Exercise 6: A random sample of 100 baseballs has been selected from each of two large crates of baseballs. One crate of baseballs was produced by Allen Sports Products; the other was produced by Baron Athletic Supply. ...MyTube. com tells its advertisers that 45% of its users are in the 17 to 25 age demographic, 35% are in the 26 to 45 demographic, and the remaining 20% are in the 46 and older demographic. Perkins Music, one of the ...
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