In exercise 12, the following data on x = 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 + 1.0334x. For these da SSE = 1 541 .4 Click on the datafile logo to reference the data. Use Table 1 of Appendix B. DATA file Entertainment ($) 161 105 101 142 100 120 167 140 98 Room Rate (S) 148 96 91 110 90 102 136 90 82 City Boston Denver Nashville New Orleans Phoenix San Diego San Francisco San Jose Tampa a. Predict the amount spent on entertainment for a particular city that has a daily room rate of $89 (to 2 decimals) $109.46 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) to $

The Centers for Disease Control and Prevention estimates that 0.2% of the US population died of heart disease in 2006.  A new medical treatment plan claims that it will reduce the risk of dying from heart disease by 12%.  There were approximately 311 million people in the US in 2006.  With this new treatment plan, how many people could be saved in a year if it works?     74,640     622.000     746,400     37,320,000     62,200,000

QUESTION 6 Every day, Kim empties the change out of her pockets and stores it in a large jar for a Rainy Day Fund. She keeps track of how much change she empties from her pockets each day over the span of several months and stores the results in the five number summary below. Min: 35¢ Q1: 75¢ Med: 90¢ Q3: 95¢ Max: 105¢ Select the boxplot that represents this data. Kim's Rainy Day Fund 30 35 40 15 50 55 60 65 70 75 80 85 90 95 100 105 110 cents Kim's Rainy Day Fund 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 cents

A biologist gathered the following information about deer populations in a national park area.   Juvenile (age ≤ 2 years) Adult (age > 2 years) Total Male 23 171 194 Female 112 935 1044 Total 135 1103 1238 The biologist made the calculation shown below. Which question was she trying to answer? 23 ÷ 194   a. What percentage of the male deer are juveniles?   b. What percentage of the juvenile deer are males?   c. What percentage of the total deer are juvenile males?   d. What percentage of the total deer are males?

The shortage of organs for transplant is a continuing problem. At the end of 2000, there were 3536 people waiting for a heart transplant, 3355 for a lung transplant, 16,012 for a liver transplant, and 46,824 for a kidney transplant. Corresponding figures for 2003 were 3292, 3543, 16,985, and 56,590, respectively. In 2006, the figures were 2625, 2691, 16,882, and 68,412, respectively. Express the information as a matrix, labeling rows and columns. Fill in the matrix below. Heart Liver 3536 46,824 3543 56,590 2006 2625 16,882