Homework Chapter 2 Problems start on page 124 in the textbook. Solutions start on page 152. *Additional Problems A1) As of July, 2013, 28 states in the U.S. had one or more tribal gambling casinos. The following table presents the number of tribal casinos in each of these states. (a) Find the first, second, and third quartile of these data. (b) Find the upper and lower outlier boundaries. (c) Which values, if any, are outliers? (d) Construct a boxplot (the kind showing outliers) for these data. Use a ruler to measure and scale accurately. A2) Find the sample variance and standard deviation for the following sample by using the formulas and checking your answer using your calculator. 17 40 24 18 16 A3) In a survey of 655 working Americans ages 25-34, the average weekly amount spent on lunch was $44.60 with standard deviation $2.81. The weekly amounts are approximately bell-shaped. (a) Estimate the percentage of amounts that are between $36.17 and $53.03. (Hint: use Empirical Rule) (b) Estimate the percentage of amounts that are between $41.79 and $47.41. (c) Between what two values will approximately 95% of the amounts be? A4) The temperature in a certain location was recorded each day for two months. The mean temperature was 62.4F with a standard deviation of 3.1F. What can you determine about these data by using Chebyshev's Inequality with K=2? Section Exercise Set 2.1 1, 7, 9 2.2 12, 13, 14, 15, 17, 18(a), 21(b)**, 78, 80 **Problem 2.21: last part of the table has the years mixed up so only do up to 1869. 2.3 23, 25, 27, 29, 33 2.4 A1*, 85 (it should say "population ages", 89(b-h) 2.5 43, 44, 45, 91 2.6 52, 53, 54, 55, 57, 58, 65 Problem 2.65 should have answer 12.5 in solution key. 2.7 A2*, 69, 70, 71, 73(a), A3*, A4* Bringing it together 110, 111, 112, 113, 115, 117 3 2 26 70 2 2 8 7 3 4 3 22 39 3 14 7 3 21 8 2 11 114 8