Comment on its shape. O This is a unimodal distribution with a peak at the 9-12 class. The distribution is reasonably symmetric. O This is a bimodal distribution with peaks at the 12-15 and 18-21 classes. The distribution is negatively skewed. O This is a unimodal distribution with a peak at the 0-3 class. The distribution is positively skewed. O This is a bimodal distribution with peaks at the 0-3 and 6-9 classes. The distribution is positively skewed. (c) Using the relative frequency distribution or the histogram, estimate the proportion of the states that have a minimum monthly cost of less than $12.00 a month. (Round your answer to one decimal place. %
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- Medicare's new medical plans offer a wide range of variations and choices for seniors when picking a drug plan. The monthly cost for a stand-alone drug plan varies from plan to plan and from state to state. The accompanying table gives the premium for the plan with the lowest cost for each state. State Cost per Month (dollars) Alabama 7.50 Alaska 1.87 Arizona 6.22 Arkansas 13.42 California 7.97 Colorado 16.38 Connecticut 10.53 Delaware 1.87 District of Columbia 7.74 Florida 6.03 Georgia 15.29 Hawaii 5.05 Idaho 15.21 Illinois 14.31 Indiana 8.40 Iowa 13.57 Kansas 9.30 Kentucky 6.24 Louisiana 5.21 Maine 13.24 Maryland 6.66 Massachusetts 9.95 Michigan 6.59 Minnesota 1.87 Mississippi 1.87 Missouri 12.68 Montana 19.69 Nebraska 9.95 Nevada 17.29 New Hampshire 6.67 New Jersey 18.36 New Mexico 6.85 New York 1.87 North Carolina 12.34 North Dakota 9.50 Ohio 19.25 Oklahoma 8.33 Oregon 6.87 Pennsylvania 1.87 Rhode…Medicare's new medical plans offer a wide range of variations and choices for seniors when picking a drug plan. The monthly cost for a stand-alone drug plan varies from plan to plan and from state to state. The accompanying table gives the premium for the plan with the lowest cost for each state. State Cost per Month (dollars) Alabama 3.84 Alaska 1.87 Arizona 13.87 Arkansas 8.26 California 19.88 Colorado 10.63 Connecticut 4.34 Delaware 6.29 District of Columbia 7.01 Florida 17.73 Georgia 12.39 Hawaii 6.22 Idaho 9.73 Illinois 20.86 Indiana 3.28 Iowa 8.86 Kansas 1.87 Kentucky 8.75 Louisiana 9.65 Maine 1.87 Maryland 6.78 Massachusetts 10.68 Michigan 17.59 Minnesota 8.99 Mississippi 9.60 Missouri 10.10 Montana 10.13 Nebraska 10.33 Nevada 1.87 New Hampshire 10.00 New Jersey 13.92 New Mexico 8.87 New York 13.17 North Carolina 17.90 North Dakota 12.55 Ohio 1.87 Oklahoma 6.41 Oregon 1.87 Pennsylvania 15.68…The monthly cost for health care for an employee and two dependents in a certain year is given in the following table. Provider Cost Provider Cost Maxicare $415.31 Kaiser $4337 Cigna $424.74 Aetna $436.26 Health Net $427.29 Blue Shield $442.25 Pacific Care $428.06 Omni Healthcare $457.90 Redwoods Plan $431.53 Lifeguard $457.64 Draw a box plot for the monthly costs of health care (ranked from lowest to highest). 0415 420 425 430 435 440 0425 430 435 440 445 450 455 420 430 440 450 420 430 440 450
- Reliable Furniture is a family business that has been selling to retail customers in the Oakville area for many years. It advertises extensively on radio and TV, emphasizing their its prices and easy credit terms. The owner would like to review the relationship between sales and the amount spent on advertising. Below is information on sales and advertising expense for the last four months. Ad Exp. Sales Rev. Month ($ in 000) ($ in 000) July 2 7 August 1 3 September 3 8 October 4 10 G-9 B continued Questions from G-9 e) Reproduce the excel output manually. f) Interpret the strength of the correlation coefficient. g) Determine the coefficient of determination. Interpret. h) Test the significance of the Coefficient of Correlation i) Test the significance of the slope coefficients of the regression equation.In 2011, home prices and mortgage rates fell so far that in a number of cities the monthly cost of owning a home was less expensive than renting. The following data show the average asking rent and the monthly mortgage on the median-priced home (including taxes and insurance) for 10 cities where the average monthly mortgage payment was less than the average asking rent (The Wall Street Journal, November 26–27, 2011). 7. City Rent ($) Mortgage ($) Atlanta 840 539 1062 1002 Chicago Detroit 823 626 DATA file Jacksonville, Fla. Las Vegas 779 711 796 655 RentMortgage 1071 953 Miami 977 Minneapolis Orlando, Fla. 776 851 695 762 651 654 Phoenix St. Louis 723 Develop a scatter diagram for these data, treating the average asking rent as the inde- pendent variable. Does a simple linear regression model appear to be appropriate? b. Use a simple linear regression model to develop an estimated regression equation to predict the monthly mortgage on the median-priced home given the average asking…Reliable Furniture is a family business that has been selling to retail customers in the Oakville area for many years. It advertises extensively on radio and TV, emphasizing their its prices and easy credit terms. The owner would like to review the relationship between sales and the amount spent on advertising. Below is information on sales and advertising expense for the last four months. Ad Exp. Sales Rev. Month ($ in 000) ($ in 000) July 2 7 August 1 3 September 3 8 October 4 10 a) Determine the regression equation. b) Interpret the values of a and b. c) Estimate sales when $3 thousand is spent on advertising. Include the 95% confidence interval for average X d) Determine the coefficient of correlation.
- Suppose automobile insurance companies gave annual premiums for top-rated companies in several states. The figure below shows box plots for the annual premium for urban customers in three states. Insur ance Premium (annual, urban) H Califomia Texas Pennsylvani a(a) Use class intervals of $0 to <$3, $3 to <$6, $6 to <$9, etc., to create a relative frequency distribution for these data. (Round your answers for relative frequency to four decimal places.) Class Interval Frequency Relative Frequency $0 <$3 $3 <$6 $6 <$9 $9 <$12 $12- <$15 $15 <$18 $18 <$21 TOTAL (b) Construct a histogram. Frequency 14 12 10 8 6 4 Frequency 14 12 10 8 6 4 2 3 3 4 3 51 3 6 9 12 15 18 21 6 0.0588 9 0.0784 0.0588 12 15 18 21 Cost Cost Frequency 14 12 10 8 6 4 Frequency 15 10 5 3 6 9 3 6 9 12 15 18 21 12 15 18 Comment on its shape. O This is a unimodal distribution with a peak at the 0-3 class. The distribution is positively skewed. This is a bimodal distribution with peaks at the 12-15 and 18-21 classes. The distribution is negatively skewed. O This is a bimodal distribution with peaks at the 0-3 and 6-9 classes. The distribution is positively skewed. O This is a unimodal distribution with a peak at the 9-12 class. The distribution is reasonably symmetric. 21 Cost Cost…A credit report has the following accounts open with the balance, credit limit, and duration of time each account has been open. Car Loan 3 Years 4 Months Credit Card 1 1 Month Balance: $500 Limit: $1000 Credit Card 2 4 Years 11 Months Balance: $500 Limit: $10,000 Credit Card 3 2 Years 2 Months Balance: $4500 Limit: $5000 Calculate the average credit age. Group of answer choices 2.6 Years 2.8 Years 2 Years 2.7 Years
- The following table presents prices, in thousands of dollars, of single-family homes for 20 of the largest metropolitan areas in the United States for the first quarter of 2012 and the first quarter of 2013. . Metro Area 2012 2013 Boston, MA 311.5 332.2 Chicago, IL 157.2 159.4 Cincinnati, OH 112.5 121.0 Cleveland, OH 84.9 101.0 Dallas, TX 148.2 160.4 Denver, CO 226.4 261.2 Houston, TX 152.1 163.7 Los Angeles, CA 122.1 155.1 Miami, FL 182.0 219.9 Minneapolis, MN 147.3 170.6 Metro Area 2012 2013 New York, NY 363.8 368.2 Philadelphia, PA 193.5 197.7 Phoenix, AZ 129.9 169.0 Portland, OR 208.6 246.5 Riverside, CA 174.3 216.7 St. Louis, MO 103.7 111.0 San Diego, CA 359.5 412.3 San Francisco, CA 448.0…According to Zillow.com, the median sale price for homes in January for South Carolina, California, and Virginia over the last three years is given in the table below (measured in $100,000). able South Carolina California Virginia 2018 183 534 98 2019 193 555 94 2020 216 569 85 In South Carolina, realtors take 5.4% of the sale price on average as part of their commission. The average realtor commission rates in California and Virginia are 4.9% and 5.3%, respectively. Use matrix multiplication to find the total earned by realtors from their commissionsPrices and mileage of 30 Subaru Forester models within 50 miles of Columbus, Indiana are collected from Cargarus.com. Mileage ranged from 7,442 to 77,674 miles. Prices ranged from $25,560 to $29,990. Attached file.