Historically, the industries with the most complaints to the Better Business Bureau have been banks, cable and satellite television companies, collection agencies, cellular phone providers, and new car dealerships. The results for a sample of 200 complaints are contained in the file B

Given the following data set: $1.42, $1.27, $1.28, $1.48, $1.36, $1.44, $1.46, $1.32, $1.33, $1.33 $1.23, $1.38, $1.43, $1.28, $1.43, $1.49, $1.37, $1.26, $1.26, $1.38 Determine the frequencies of gasoline prices for each given class. Frequency Relative Frequency Class < $1.25 $1.25 < $1.30 $1.30 $1.35 $1.35 $1.40 $1.40 < $1.45 $1.45 CHECK ANSWER

In 2015, Addison Group and Kelton surveyed the work preferences and attitudes of 1081 working adults spread over three generations-Baby Boomers, Generation X, and Millennials (Society for Human Resource Management website). One question asked individuals if they would leave their current job to make more money at another job. The file Millennials contains the sample data, which is also summarized in the following table. Click on the datafile logo to reference the data. DATA file Leave Job for More Money? Yes No Baby Boomer 137 213 Generation 7.85 What is the p-value? Use Table 3 of Appendix B. The p-value is between 0.005 and 0.01 Using a 0.05 level of significance, what is your conclusion? Conclude interest in leaving job for more money is not Generation X 171 199 Millennial 175 186 Conduct a test of independence to determine whether interest in leaving a current job for more money is independent of employee generation. Compute the value of the X² test statistic (to 2 decimals). Do…

Maria Washington owns and manages a small business in San Francisco, California. The business provides breakfast and brunch food, via carts parked along sidewalks, to people in the business district of the city. Being an experienced businessperson, Maria provides incentives for the four salespeople operating the food carts. This year, she plans to offer monetary bonuses to her salespeople based on their individual mean daily sales. Below is a chart giving a summary of the information that Maria has to work with. (In the chart, a "sample" is a collection of daily sales figures, in dollars, from this past year for a particular salesperson.) Groups Sample Sample Sample size mean variance Salesperson 1 88 209.8 2360.3 Salesperson 2 82 191.8 2049.0 215.8 2532.7 Salesperson 3 123 Salesperson 4 68 201.7 1527.0 Send data to calculator V Send data to Excel Maria's first step is to decide if there are any significant differences in the mean daily sales of her salespeople. (If there are no…

The average number of minutes Americans commute to work is 27.7 minutes (Sterling's Best Places, April 13, 2012). The average commute time in minutes for 48 cities are as follows: Click on the datafile logo to reference the data. DATA file Albuquerque Atlanta Austin Baltimore Boston Charlotte Chicago Cincinnati Cleveland Columbus Dallas Denver Detroit El Paso Fresno Indianapolis 23.3 28.3 24.6 32.1 31.7 25.8 38.1 24.9 26.8 23.4 28.5 28.1 29.3 24.4 23.0 24.8 Jacksonville Kansas City Las Vegas Little Rock Los Angeles Louisville Memphis Miami Milwaukee Minneapolis Nashville New Orleans New York Oklahoma City Orlando Philadelphia 26.2 Phoenix 23.4 Pittsburgh Portland 28.4 20.1 32.2 21.4 23.8 30.7 24.8 23.6 25.3 31.7 43.8 22.0 27.1 34.2 Providence Richmond c. What is the mode for these 48 cities? Select your answer - Sacramento Salt Lake City San Antonio San Diego San Francisco San Jose Seattle St. Louis Tucson Tulsa Washington, D.C. 28.3 25.0 26.4 23.6 23.4 25.8 20.2 26.1 24.8 32.6 28.5…

You are an education researcher interested in studying if race or ethnicity affects the severity of punishment children receive.  Through open records, you are able to collect from several high schools the length of suspensions given to kids for fighting along with the race/ethnicity of the child.  The state of Texas divides school children into one of 7 race/ethnicity groups: African American, American Indian, Asian, Hispanic, Pacific Islander, White, or Multiracial.  You want to compare the average length of suspension among these 7 groups.  Which statistical test would be best to determine if there is a significant difference in the severity of punishment among the different groups?     one-sample t-test     related samples t-test     independent samples t-test     ANOVA

Find the mean, median and mode of the given sample. How would the mean, and median change if the highest salar is omitted? $250,00, $300,000, $350147, $232,425, $360,000, $1,231,421, $810,000, $229,000

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Construct a typology of pro-life attitudes

A statistical program is recommended. The Condé Nast Traveler Gold List provides ratings for the top 20 small cruise ships. The data shown below are the scores each ship received based upon the results from Condé Nast Traveler's Annual Readers' Choice Survey. Each score represents the percentage of respondents who rated a ship as excellent or very good on several criteria, including Shore Excursions and Food/Dining. An overall score was also reported and used to rank the ships. The highest ranked ship, the Seabourn Odyssey, has an overall score of 94.4, the highest component of which is 97.8 for Food/Dining. Shore Ship Overall Food/Dining Excursions Seabourn Odyssey 94.4 90.9 97.8 Seabourn Pride 93.0 84.2 96.7 National Geographic Endeavor 92.9 100.0 88.5 Seabourn Sojourn 91.3 94.8 97.1 Paul Gauguin 90.5 87.9 91.2 Seabourn Legend 90.3 82.1 98.8 Seabourn Spirit 90.2 86.3 92.0 Silver Explorer 89.9 92.6 88.9 Silver Spirit 89.4 85.9 90.8 Seven Seas Navigator 89.2 83.3 90.5 Silver Whisperer…