Part B: Calculations 1. Refer to the following breakdown of responses to a survey of room cleanliness in a hotel. Response Frequency Not Satisfied 20 Satisfied 40 Highly Satisfied | 20 (1) What is the class interval for the following frequency table? (2) What is the class with the greatest frequency? (3) What percent of the responses indicated that customers were satisfied? (4) Draw a bar graph that illustrates the preceding frequency table. (5) Draw a bar graph that illustrates the preceding frequency table. (6) Draw a bar graph that illustrates the relative frequencies (7) Draw a pie chart that illustrates the relative frequencies. 2. A company's human resources department was interested in the average number of years that a person works before retiring. The sample of size 11 follows: 12 16 18 19 21 21 21 22 24 24 26 (1) What is the mode? (2) What is the arithmetic mean? (3) What is the median? (4) Based on the values of the arithmetic mean, median, and mode, what is the most likely shape of the distribution? 3. Home Pros sells supplies to "do-it-yourselfers." One of the things the company prides itself on is fast service. It uses a number system and takes customers in the order they arrive at the store. Recently, the assistant manager tracked the time customers spent in the store from the time they took a number until they left. A sample of 12 customers was selected and the following data (measured in minutes) were recorded: 19.17.22.18.28.34.45.39.38.44.34.10 Compute the mean, median, mode, range, and standard deviation. 4. For the following data, 9 14 15 15 15 16 17 17 18 18 18 19 20 21 23 25 28 Find the information required to construct a box plot. (2) What is the interquartile range? (3Are any of the observations an outlier? 5. A company set up a kiosk in the Mall of America for several hours and asked randomly selected people which color cell phone cover was their favorite. The results follow: Age less than Age 21 0