Question: Security at DCCC has been spending too much time giving students parking tickets during the fall semester. In order to try and reduce the number

Security at DCCC has been spending too much time giving students parking tickets during
the fall semester. In order to try and reduce the number of tickets they have increased the
cost of the tickets. They want to determine if they have decreased the number of tickets by
selecting a sample of 36 students with a mean number of tickets being 27 and a standard
deviation of 12.
a. Create a 90% confidence interval

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