Question: During 9 surveys throughout the past decade, the apartment vacancy rates in Minneapolis (in percentage) were found to be 4.9, 6.3, 5.7, 4.4, 3.0, 3.6, 3.8, 6.1, and 4.5, respectively. Assume that the measurements represent a random sample from a normal population, find a 95% prediction interval for the apartment vacancy rate in Minneapolis during the next survey.