1. A pie chart shows the relative market share of cola products. The â€œsliceâ€ for Pepsi-Cola has a central angle of 90 degrees. What is its market share? 2. In a marketing study, 100 consumers were asked to select the best digital music player from the iPod, the iRiver, and the Magic Star MP3. To summarize the consumer responses with a frequency table, how many classes would the frequency table have? .... Read More

Who are the parties (the plaintiffs and the defendant) in this lawsuit?Suppose the California legislature passes a law that severely restricts carbon dioxide emissions from automobiles in that state. A group of automobile manufacturers files suit against the state of California to prevent the enforcement of the law. The automakers claim that a federal law already sets fuel economy standards nationwide and that fuel economy standards are essentially the same as carbon dioxide emission standards. .... Read More

59. A film alliance used a random sample of 50 U.S. citizens to estimate that the typical American spent 78 hours watching videos and DVDs last year. The standard deviation of this sample was 9 hours. a. Develop a 95 percent confidence interval for the population mean number of hours spent watching videos and DVDs last year. b. How large a sample should be used to be 90 percent confident the sample mean is within 1.0 hour of the population mean? .... Read More

60. There are three clues labeled â€œdaily doubleâ€ on the game show Jeopardy. If three equally matched contenders play, what is the probability that: a. A single contestant finds all three â€œdaily doublesâ€? b. The returning champion gets all three of the â€œdaily doublesâ€? c. Each of the players selects precisely one of the â€œdaily doublesâ€? .... Read More