Do freshmen spent significantly more time on Facebook than other class ranks? A recent study (R. Junco,

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Do freshmen spent significantly more time on Facebook than other class ranks? A recent study (R. Junco, Journal of Applied Developmental Psychology, 2015, vol. 36, p. 18€“29) investigated the amount of time per day freshman, sophomores, juniors, and seniors spent on Facebook while doing schoolwork. The students surveyed were U.S. residents from a 4-year, public, primarily residential institution in the Northeastern United States. The data from the survey are available on the book€™s website, with time measured in minutes. The following computer output shows the mean time each cohort spent on Facebook and an ANOVA table. Construct a 95% confidence interval to compare the population mean time spent per day on Facebook between freshmen and seniors.

Summary statistics for time spent on Facebook by class year and ANOVA table SO FR JU SE 440 403 347 407 49.0 Mean 63.7 5

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Statistics The Art And Science Of Learning From Data

ISBN: 9780321997838

4th Edition

Authors: Alan Agresti, Christine A. Franklin, Bernhard Klingenberg

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Question Posted: Jul 12, 2018 09:10 AM

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Do freshmen spent significantly more time on Facebook than other class ranks? A recent study (R. Junco,

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Summary statistics for time spent on Facebook by class year and ANOVA table SO FR JU SE 440 403 347 407 49.0 Mean 63.7 56.5 70.4 67.7 71.5 79.0 63.7 DF Source MS 102903 6.84 Class 3 34301 0.000 1593 7988051 Error 5014 Total 1596 8090954

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The 95 CI is Because 0 does not fall in this con...View the full answer

Statistics The Art And Science Of Learning From Data

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