1.4

In exercise 12, the following data on 2 = average daily hotel room rate and y = amount spent on entertainment (The Wall Street Journal, August 18, 2011) lead to the estimated regression equation y = 17.49+1.0334z. For these data SSE = 1541.4. Click on the datafile logo to reference the dots. Use Table 1 of Appendix. DATA file City Room Rate (5) Entertainment (5) Boston 148 161 Denver 96 105 Nashville 91 101 New Orleans 110 142 Phoenix 00 100 San Diego 120 San Francisco 136 167 San Jose 90 140 Tampu 82 98 a. Predict the amount spent on entertainment for a particular city that has a daily room rate of $89 (to 2 decimals), 102 b. Develop a 95% confidence interval for the mean amount spent on entertainment for all cities that have a daily room rate of $89 (to 2 decimals), to $ c. The average room rate in Chicago is $128. Develop a 95% prediction interval for the amount spent on entertainment in Chicago (to 2 decimals)