Six months after the local newspaper ran a week-long series of articles on the Northlake, VA Community Pride Center, the director wants to see whether this positive media coverage improved turnout at the center's after-school recreation programs, compared to turnout before the media coverage took place. Prior to the media coverage, the center averaged 22.3 participants per day. The director has taken a random sample of daily attendance since the media coverage ended. Help the director evaluate the effects of the media coverage on program attendance.

If you wanted to present a conservative estimate of the impact of these articles, you might report the bottom of the confidence interval for additional participants. What is this number?

To present a more optimistic view of the articles’ impact, you could also report the highest likely additional participants. What is this number.

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