Which type of statistical information or graph would be most helpful in determining whether the baseline characteristics of a study group are well balanced? A) A bar chart B) Descriptive statics C) A box-whisker plot D) A flow chart
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. Which type of statistical information or graph would be most helpful in determining whether the baseline characteristics of a study group are well balanced?
A) A bar chart
B) Descriptive statics
C) A box-whisker plot
D) A flow chart
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- A. Directions: Analyze, interpret and make conclusion out of the given data.Which of these groups has height measurements that most clearly exhibit a bimodal distribution? A) a group of third and fourth graders B) a group of 30- and 40-year-old adults C) a group of elementary school students and their teachers D) a group of engineering students and business studentsThe diastolic blood pressures for a sample of patients at a clinic were as follows. The measurements are in mmHg.78 87 91 85 97 102 73 90 102 10594 85 81 95 77 106 84 101 83 9279 81 96 88 100 85 89 87 83 9088 95 78 74 108 85 87 92 97 83Construct a stem-and-leaf diagram using two lines per stem
- Following are measurements of soil concentrations (in mg /kg) of chromium (Cr) and nickel (Ni) at20 sites in the area of Cleveland, Ohio. These data are taken from the article "Variation in NorthAmerican Regulatory Guidance for Heavy Metal Surface Soil Contamination at Commercial andIndustrial Sites" (A. Jennings and J. Ma, J. Environment Eng, 2007:587-609). Cr: 260 19 36 247 263 319 317 277 319 264 23 29 61 119 33 281 21 35 64 30Ni: 435 377 359 53 38 38 54 188 397 33 92 490 28 35 799 347 321 32 74 508 (a) Construct a histogram for each set of concentrations. (b) Find the 1st, 2nd and 3rd quartiles for the Cr concentrations (c) Find the 1st, 2nd and 3rd quartiles for the Ni concentrations.Following are measurements of soil concentrations (in mg /kg) of chromium (Cr) and nickel (Ni) at20 sites in the area of Cleveland, Ohio. These data are taken from the article "Variation in NorthAmerican Regulatory Guidance for Heavy Metal Surface Soil Contamination at Commercial andIndustrial Sites" (A. Jennings and J. Ma, J. Environment Eng, 2007:587-609).Cr: 260 19 36 247 263 319 317 277 319 264 23 29 61 119 33 281 21 35 64 30Ni: 435 377 359 53 38 38 54 188 397 33 92 490 28 35 799 347 321 32 74 508 (d) Use these to construct comparative boxplots for the two sets of concentrations. (e) Using the boxplots, what differences can be seen between the two sets of concentrations?Given that Cheryl is collecting data on car color, what type of data is she working with?
- Given the following set of data, determine the mode.The following data are the maximum temperatures (in degrees Fahrenheit) of 17 cities in the United states measured on the same day. 53 70 65 74 85 76 84 70 61 59 54 66 56 71 81 73 76 Construct a box and whisker plot for the data.The following data are the number of pages in 40 books on a shelf. Construct a box plot using a graphingcalculator, and state the interquartile range.136; 140; 178; 190; 205; 215; 217; 218; 232; 234; 240; 255; 270; 275; 290; 301; 303; 315; 317; 318; 326; 333; 343;349; 360; 369; 377; 388; 391; 392; 398; 400; 402; 405; 408; 422; 429; 450; 475; 512
- A report included the accompanying data on extra travel time for peak travel time in hours per year per traveler for different sized urban areas. The data are summarized in the table below. Very Large Urban Areas Extra Hours per Year per Traveler Los Angeles, CA 94 San Francisco, CA 73 Washington DC, VA, MD 70 Atlanta, GA 68 Houston, TX 64 Dallas, Fort Worth, TX 61 Chicago, IL-IN 59 Detroit, MI 58 Miami, FL 52 Boston, MA, NH, RI 52 New York, NY-NJ-CT 50 Phoenix, AZ 50 Philadelphia, PA-NJ-DE-MD 39 Large Urban Areas Extra Hours per Year per Traveler Riverside, CA 57 Orlando, FL 57 San Jose, CA 55 San Diego, CA 54 Denver, CO 53 Baltimore, MD 52 Seattle, WA 48 Tampa, FL 48 Minneapolis, St Paul, MN 45 Sacramento, CA 42 Portland, OR, WA 41 Indianapolis, IN 40 St Louis, MO-IL 37 San Antonio, TX 35 Providence, RI, MA 35 Las Vegas, NV 32 Cincinnati, OH-KY-IN 32 Columbus, OH 31 Virginia Beach, VA 28 Milwaukee, WI 25 New…To help demonstrate the balance between study groups based of the baseline characteristics of a group, a researcher might include which of the following in their research results? Group of answer choices A flow chart A box and whisper plot Descriptive statistics A pie chartThe data below are the ages and systolic blood pressures (measured in millimeters of mercury) of 9 randomly selected adults. What is the best predicted value for y given x=37 x 38 41 45 48 51 53 57 61 65 y 116 120 123 131 142 145 148 150 152