jessicaspring2003 jessicaspring2003
  • 20-10-2022
  • Mathematics
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A 95% confidence interval for the mean hours freshmen spent on social media per day was calculated to be (2.5 hr,3.1 hr). The confidence interval was based on an SRS of
size n=50 and was calculated using a Normal distribution. The population standard
deviation is (show all work).

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