Levels Tought:
Elementary,Middle School,High School,College,University,PHD
Teaching Since: | May 2017 |
Last Sign in: | 304 Weeks Ago, 1 Day Ago |
Questions Answered: | 66690 |
Tutorials Posted: | 66688 |
MCS,PHD
Argosy University/ Phoniex University/
Nov-2005 - Oct-2011
Professor
Phoniex University
Oct-2001 - Nov-2016
44. ACT, Inc. In 2004, ACT, Inc. reported that 74% of 1644 randomly selected college freshmen returned to col- lege the next year. Estimate the national freshman-to- sophomore retention rate.
a) Check that the assumptions and conditions are met for inference on proportions.
b) Construct a 98% confidence interval.
c) Interpret your interval.
d) Explain what “98% confidence” means in this context.
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