3. The following table gives home values of 10 homes in three neighborhoods:Neighborhood A$800,000$600,000Neighborhood B$1,600,000$1,200,000$800,000$1,200,000Neighborhood C$1,000,000$400,000$500,000$500,000Calculate the mean (expected) home value for all homes in all regions. Prove that the law of iteratedexpectations holds in this case, treating price as Y and the neighborhood as X. Use correct notation.

The Law of Iterated Expectation states that: E(X) =…

Answered: 3. The following table gives home…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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House prices: The following table presents prices, in thousands of dollars, of single-family homes for 20 of the 25 largest metropolitan areas in the United States for the third quarter of 2012 and the third quarter of 2013 (information for Detroit was unavailable), Metro Area 2012 2013 Metro Area 2012 2013 Atlanta, GA 878 115.1 Philadelphia, PA 193.5 197 7 Baltimore, MD 218.1 226.5 Phoenix, AZ 129,9 169.0 Boston, MA 311.5 332.2 Portland, OR 208.6 246.5 Chicago, IL 157.2 159.4 Riverside, CA 174.3 216.7 Cincinnati, OH 112.5 121.0 St. Louis, MO 103.7 111.0 Houston, TX 152.1 163.7 San Diego, CA 359.5 412.3 Los Angeles, CA 122.1 155.1 San Francisco, CA 448.0 593.9 Miami, FL 182.0 219.9 Seattle, WA 265.4 312.6 Minneapolis, MN 147.3 170.6 Tampa, FL 131.9 141.8 New York, NY 363.8 368.2 Washington, DC 311.6 348.7 Source: National Realtors Association Send data to Excel (a) Find the mean and median price for 2012. Round the answers to at least two decimal places. (b) Find the mean and median…
Suppose 224 subjects are treated with a drug that is used to treat pain and 52 of them developed nausea. Use a 0.1 significance level to test the claim that more than 20% of users develop nausea. a) Identify the null and alternative hypotheses for this test. b) Identify the test statistic for this hypothesis test. c) Identify the P-Value for this hypothesis test. d) Identify the conclusion for this hypothesis test. 1) Reject. There is not sufficient evidence to warrant the support of the claim that more than 20% of users develop nausea. 2) Fail to reject. There is sufficient evidence. 3) Fail to reject. There is not sufficient evidence. 4) Reject. There is sufficient evidence.
Use the following table to answer question 5: Cancer Deaths in the US, 2001-2005, by Race and Gender All Deaths from Cancer Deaths from Lung Cancer Male Female Male Female White 1,244,972 1,158,952 391,226 300,955 Black 162,908 150,190 50,038 31,654 Other 33,174 30,901 8,840 6,099 Source: National Center for Health Statistics Calculate the proportional mortality ratio for lung cancer for black women.
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
The data below shows the square feet of living space and the selling price of 12 residential properties. Residence x (sq. ft.) y (in thousands) 1 1,360 $417.8 2 1,940 $563.6 3 1,750 $509.3 4 1,550 $494.7 1,790 $443.4 1,750 $465.5 7 2,230 $690.8 1,600 $457.8 1,450 $432.9 10 1,870 $548.6 11 2,210 $638.0 12 1,480 $403.2 n USE SALT (a) Find the best-fitting line that describes these data. (Round your numeric values to three decimal places.) y =
The annual incomes of five people are presented in the table below. When measuring the income distribution in quintiles, which income amount would be considered part of the fourth quintile? Please type the income exactly as presented in the table. Weston $10, 000 Violet $30, 000 Luke $15, 000 Alex $50, 000 Madison $25, 000 Provide your answer below:
Table 1: Birds counted at a New Jersey Wildlife Conservation Park Bird Species Ruby Throated Hummingbird House Sparrow Purple Martin Count Spring Summer Winter 21 32 0 21 19 14 3 25 21
Grade points are assigned such that an A receives 4 points, a B receives 3 points, a C receives 2 points, a D receives 1 point, and a F receives 0 points. Grades are weighted according to credit hours (units). If a student receives an A in a four-unit class, a D in a two-unit class, a B in a three-unit class and a C in a three-unit class, what is the student's grade point average? O A. 2.75 O B. 1.75 O C. 3.00 O D. 2.50 Click to select your answer. DELL XXX EVD disc RW DELL
The director of library services at a college did a survey of types of books (by subject) in the circulation library. Then she used library records to take a random sample of 888 books checked out last term and classified the books in the sample by subject. The results are shown below. Subject Area Percent of Books on Subject in CirculationLibrary on This Subject Number of Books inSample on This Subject Business 32% 284 Humanities 25% 218 Natural Science 20% 207 Social Science 15% 102 All other subjects 8% 77 (b) Find the value of the chi-square statistic for the sample. (Round the expected frequencies to three decimal places. Round the test statistic to three decimal places.)
In a study of how the environment affects spending, researchers varied the presence of music and scents in a shopping mall. Interviews with shoppers who made unplanned purchases revealed the average purchase amounts shown to the right. Each group has 100 shoppers. Complete parts (a) through (c) below. (a) If each group includes 100 shoppers, which group spent the most money in total? Condition None Scent Music Scent and music A. The group that was exposed to only music spent the most money in total. B. The group that was exposed to only scent spent the most money in total. C. The group that was exposed to both scent and music spent the most money in total. D. The group that was exposed to neither scent nor music spent the most money in total. (b) If medians summarized each group's spending rather than means, would you be able to identify the group with the largest spending? A. No, the total amount cannot be recovered from the median value. B. Yes, the total amount can be recovered from…
The director of library services at a college did a survey of types of books (by subject) in the circulation library. Then she used library records to take a random sample of 888 books checked out last term and classified the books in the sample by subject. The results are shown below. Subject Area Percent of Books on Subject in CirculationLibrary on This Subject Number of Books inSample on This Subject Business 32% 237 Humanities 25% 220 Natural Science 20% 223 Social Science 15% 128 All other subjects 8% 80 Using a 5% level of significance, test the claim that the subject distribution of books in the library fits the distribution of books checked out by students. (a) What is the level of significance?State the null and alternate hypotheses. H0: The distributions are the same.H1: The distributions are different.H0: The distributions are the same.H1: The distributions are the same. H0: The distributions are different.H1: The distributions are different.H0: The…
The Department of the Census provides the following data table. single married widowed divorced total Male .129 .298 .013 .040 .48 Female .305 .057 .054 .52 Total .233 .603 .070 .094 1.0 a) Fill in the missing word for each of the totals. (What is being totaled in each column/row?) b) Find P(Widowed and Male). = .013 c) Find P(Widowed)=.070 d) Find P(Married or Female). Write out the formula you use so I know that you know what you are doing. e) Find P(Widowed and Divorced). Explain your answer. f) Are Divorced and Male Mutually Exclusive events. Why or why not?

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3. The following table gives home values of 10 homes in three neighborhoods: Neighborhood A $800,000 $600,000 Neighborhood B $1,600,000 $1,200,000 $800,000 $1,200,000 Neighborhood C $1,000,000 $400,000 $500,000 $500,000