19. In 1970, an investigation was launched into whether Chicago banks had been discriminating in whothey gave loans to specifically whether they were approving loans for black residents at lower ratesthan others. An SRS of size 1000 residents is taken, and the following two-way table was created:Black Not Black TotalLoan Approved 66560Loan Denied64310Total130 8705994011000(a) Calculate what you would expect the values to be if there were no discrimination.(b) Calculate the x² value, and use the given table to determine if the result is significant at thea = .05 level.

The question is about categorical data analysis.Given :( Note : The row totals given in the question…

Answered: 19. In 1970, an investigation was…

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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. In an upcoming decision to relocate, a new graduate’s decision on location choice comes down to housing prices. The following data are the monthly rental prices for a sample of unfurnished studio apartments in Concord, New Hampshire, and a sample of unfurnished studio apartments in Charleston, West Virginia: Concord$955 $980 $940 $975 $965 $990 $1,240 $1,120Charleston$725 $705 $695 $725 $690 $745 $575 $800a. For each set of data, compute the mean, median, mode, range, standard deviation, and coefficient of variation. b. What conclusions can you draw about unfurnished studio apartments renting in Concord versus Charleston? Compare and contrast.
Car manufacturers produced a variety of classic cars that continue to increase in value. Suppose the following data is based upon the Martin Rating System for Collectible Cars, and shows the rarity rating (1-20) and the high price ($1,000) for 15 classic cars. Model Rating Price ($1,000) A 18 1,600.0 B 17 450.0 19 3,975.0 15 77.5 18 350.0 17 140.0 16 125.0 16 250.0 14 87.0 19 1,300.0 16 375.0 19 2,650.0 13 45.0 17 375.0 18 1,000.0 00 с D E LL F G H I J L M N O
1. Fill in the blanks for each of the statements below. а. A survey of 1000 U.S. adults found that 40% think the internet is the best way to get news and information. Population: Sample: Variable of Interest: Type of Data (Qualitative or Quantitative): Is the 40% a parameter or statistic, and why? b. A survey of the 55 law firms in a local city found that the average hourly billing rate is $425. Population: Sample: Variable of Interest: Type of Data (Qualitative or Quantitative): Is the $425 a parameter or statistic, and why?.
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1.The Prevalence of having health insurance (as a decimal) for 1 (Table 4 box b. above) is: 2. The Prevalence of having health insurance (as a decimal) for 2 (Table 4 box e. above) is: 3.The Prevalence of having health insurance (as a percentage) for 1 (Table 4 box c. above) is: 4.The Prevalence of having health insurance (as a Percentage) for 2 (Table 4 box f. above) is:
4) Given a group of students at a local college who have been cross-classified as being a senior or not and a business major or not: Business Major Yes No Senior Yes 24 68 No 17 81 What is P(Senior) (Round your answer to three decimal places)?
6. A social worker looks at data in her state regarding the relationship between being in foster care and having a criminal record by the age of 25. "Aging out' refers to when a youth turns 18 years old and is expected to move out of foster care and start their lives on their own. Fictional data fro 1350 youths is shown below. Answer the following questions in the space below, labeling each response a, b, or c. What percentage of youths overall were adopted before aging out, and had a criminal record? What percentage of youths were in foster care until they were aged out? True or False: If foster care status and having a crime record were independent of each other, and 55% overall had no crime record, you would expect 55% of those who aged out in foster care to have no crime record. No crime record Crime record Total Foster care until ‘aged out’ 445 450 895 Adopted before aging out 300 155…
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