STAT 120-Studies show that extreme Internet usage among college

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Studies show that extreme Internet usage among college students is associated with low self-esteem and high levels of stress and anxiety. Researchers randomly sampled 213 U.S. college students and recorded the number of hours each student spent using the Internet the previous day. A plot of the sample data showed no extreme outliers or skewness, and the sample had a mean of x-bar=4.3 hours and a standard deviation of s=1.414 hours. What is a 90% confidence interval estimate for the mean daily number of hours all college students spend using the Internet?

Answer the questions in complete sentences when applicable.

STATE: What is a 90% confidence interval estimate for the mean daily number of hours all college students spend using the Internet?

1. 1. PLAN:State the name of the appropriate estimation procedure (e.g., one-sample z confidence interval for proportions). (1 pt)
2. Describe the parameter of interest in the context of the problem. (1 pt)

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