An equal number of two-parent families, each with threechildren younger than ten years old were interviewed incities of populations ranging from 25,000 to 75,000. In-terviewers collected data on (average) yearly living ex-penses for housing (rental/mortgage payments), food,and clothing. The collected living expense data wererounded to the nearest 100 dollars. Compute the corre-lation coefficient between the population data and livingexpense data shown in the following table:City PopulationAverage YearlyLiving Expense (in $ 100s)(in 1000s)25723065357840705079608565837588

Answered: Image /qna-images/answer/193f5ef2-7e9c-4ceb-ae67-36dded910b32.jpg

Answered: An equal number of two-parent families,…

Algebra and Trigonometry (6th Edition)

6th Edition

ISBN:9780134463216

Author:Robert F. Blitzer

Publisher:Robert F. Blitzer

ChapterP: Prerequisites: Fundamental Concepts Of Algebra

Section: Chapter Questions

Problem 1MCCP: In Exercises 1-25, simplify the given expression or perform the indicated operation (and simplify,...

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Consider the following data:Monthly Profit of a Gym Month Jan-12 Feb-12 Mar-12 Apr-12 May-12 Jun-12 Jul-12 Aug-12 Sep-12 Profit ($) 5,9015,901 5,6535,653 5,1545,154 4,8774,877 5,2455,245 5,7985,798 6,9196,919 6,2346,234 5,9585,958 Step 1 of 5 : Determine the three-period moving average for the next time period. If necessary, round your answer to one decimal place.
Rank Player Money ($) Scoring Average DrDist DrAccu GIR 1 Vijay Singh 6,601,094 70.27 297.8 59.45 68.45 2 Phil Mickelson 5,188,875 70.28 295.7 55.27 65.81 3 Sergio Garcia 4,858,224 70.6 294.6 59.39 67.06 4 Kenny Perry 4,663,794 70.21 296 61.97 67.47 5 Anthony Kim 4,656,265 70.22 300.9 58.34 65.78 6 Camilo Villegas 4,422,641 70.6 293.3 58.15 64.6 7 Padraig Harrington 4,313,551 70.7 296.3 59.37 60.67 8 Stewart Cink 3,979,301 70.65 296.9 55.27 66.94 9 Justin Leonard 3,943,542 70.41 281.4 67.72 66.61 10 Robert Allenby 3,606,700 70.64 291.7 65.64 70.4 11 Jim Furyk 3,455,714 70.56 280.4 69.37 66.78 12 Ryuji Imada 3,029,363 71.13 278.6 59.64 61.39 13 Mike Weir 3,020,135 70.68 284.8 62.46 64.62 14 Geoff Ogilvy 2,880,099 71.38 292.1 58.18 61.89 15 K.J. Choi 2,683,442 71.01 286.1 61.38 65.48 16 Ben Curtis 2,615,798 70.96 284.7 67.2 63.45 17 Kevin Sutherland 2,581,311 70.22 291 61.93 68.2 18 Trevor Immelman 2,566,199 71.85 291.3 62.45 63.07 19 Ernie Els…
The working class cost of living index numbers for a certain place are given below for certain years. Interpolate the missing number : Year : 1969 1970 1971 1972 1973 1974 Index No. 320 300 280 278 250
Find the trend of industrial employment in a city from the following data for 1975-84 Year : 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 No. of Workers Employed (lakhs): 3-2 3-3 3-7 3-9 3.6 4-3 4-8 4-8 5-4 6-3
3. The Save More Rental Car Agency at the Cincinnati airport would like to examine records from last summer in order to plan for the coming summer demand. The data for last year's demand, broken down by type of vehicle requested, is shown in the table below. Vehicle Type Sub-compact Compact Full-size Frequency 545 892 740 360 280 168 2985 * Total is not equal to 1.000 due to rounding error. Relative Frequency 0.183 0.299 0.248 Luxury SUV Van Total 0.121 0.094 0.056 1.001* a) Construct a frequency and relative frequency bar chart for the data. b) Construct a pie chart to display the information. c) This summer's demand is expected to be 20% higher than demand for last summer. Approximately how many luxury cars are expected to be rented this summer?
I. The Department of Agriculture obtained the following data representing the one week growth in centimeters of 30 newly planted corn plants.
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
Data on the gasoline tax per gallon (in cents) as of a certain date for the 50 U.S. states and the District of Columbia are shown below. State Gasoline Taxper Gallon State Gasoline Taxper Gallon Alabama 19.1 Missouri 17.2 Alaska 9.1 Montana 27.7 Arizona 19.1 Nebraska 27.8 Arkansas 21.7 Nevada 23.7 California 37.1 New Hampshire 23.9 Colorado 23.4 New Jersey 14.5 Connecticut 25.1 New Mexico 19.0 Delaware 22.9 New York 33.9 District of Columbia 23.4 North Carolina 35.4 North Dakota 23.1 Florida 30.7 Ohio 28.1 Georgia 26.6 Oklahoma 17.1 Hawaii 18.4 Oregon 30.1 Idaho 33.1 Pennsylvania 51.3 Illinois 33.0 Rhode Island 34.0 Indiana 28.9 South Carolina 16.9 Iowa 31.9 South Dakota 30.1 Kansas 24.9 Tennessee 21.3 Kentucky 25.9 Texas 20.1 Louisiana 21.0 Utah 30.0 Maine 31.5 Vermont 30.6 Maryland 32.7 Virginia 16.9 Massachusetts 26.6 Washington 44.5 Michigan 31.0 West Virginia 33.3 Minnesota 30.5 Wisconsin 33.0 Mississippi 18.3 Wyoming 24.1…
The table below shows the share of income going to each quintile of the income distribution for Neverland in 1980 and 1990. Complete the table below finding the the cumulative share of income for 1980 and 1990 and answer the following: Share of income in Cumulative share of Share of income in Cumulative share of Quintiles 1980 income in 1980 1990 income in 1990 1st 7% 6.6.% 2nd 11.5% 11.5% 3rd 17% 16.3% 4th 24.8% 22.7% 5th 39.7% 42.9% a) Sketch the Perfect Equality line and the Lorenz curve for 1980 and for 1990. Don't forget to label your graph and your curves! b) According to the Lorenz curves that you draw in (a), which year had worse income inequality, 1980 or 1990? JUSTIFY your answer! NOTE: This is a file upload question. Work your answer in a piece of paper, take a picture and upload your file.
The manager of Hudson Auto Repair would like to get a better picture of the distribution of costs for new parts used in the engine tune-up jobs done in the garage. A sample of 50 customer invoices for tune-ups has been taken and the costs of parts, rounded to the nearest dollar, are listed below. 91 78 93 57 75 52 99 80 73 62 71 69 72 89 66 75 79 75 72 76 104 74 62 68 97 105 77 65 80 109 85 97 88 68 83 68 71 69 67 74 62 82 98 101 79 105 79 69 62 73 Develop a frequency distribution for these cost data. Use your own judgment to determine the number of classes and class width that provide a distribution that will be meaningful and helpful to the manager. a. Develop a stem-and-leaf display showing both the rank order and shape of the data set. (3) b. Develop a stretched stem-and-leaf display using two stems for each leading digit(s). (2) c. Which display is better at revealing the natural grouping and variation in the data? (1)
(e) Test the hypothesis Ho : B1 = 10 versus H1 :ß, # 10 using a = 0.01. Ho and conclude the slope v 10 at a = 0.01. (d) Test the hypothesis Ho : Bo = 0 versus H1 : Bo + 0 using a = 0.01. Ho and conclude that the intercept be included in the model.

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