(Continued)Percentage Below PovertyLine (2009)Percentage Without HealthInsurance (2009)StateTexas17.226.1Washington12.312.9Wisconsin12.49.5Source: U.S. Census Bureau, The 2012 Statistical Abstract, 2011, Tables 709 and 156.a. Construct a scatterplot, predicting the percentage without health insurance withthe percentage living below the poverty level. Does it appear that a straight-linerelationship will fit the data?b. Calculate the regression equation with percentage of the population without healthinsurance as the dependent variable, and draw the regression line on the scatterplot.What is its slope? What is the intercept? Has your opinion changed about whethera straight line seems to fit the data? Are there any states that fall far from theregression line? Which one(s)? C4. In 2010, a U.S. Census Bureau report revealed that approximately 14.3% of allAmericans were living below the poverty line in 2009. This figure is higher than in 2000,when the poverty rate was l12.2%. Individuals and families living below the povertyline face many obstacles, the least of which is access to health care. Inliving below the poverty line are without any form of health insurance. Using data fromthe U.S. Census Bureau, analyze the relationship between living below the poverty lineand access to health care for a random sample of 12 states. (The health insurance dataare pre-Affordable Care Act implementation.)many cases, thosePercentage Below PovertyLine (2009)Percentage Without HealthInsurance (2009)State17.916.9Alabama14.220California15.214.3Idaho1617.3Louisiana15.89.4New Jersey14.814.2New York11.412.5Pennsylvania12.311.5Rhode Island17.017.1South Carolina(Continued)

The independent variable is Percentage Below Poverty Line. The dependent variable is Percentage…

Answered: C4. In 2010, a U.S. Census Bureau…

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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Need help with this problem. It is believed that large doses of acetaminophen (the activeingredient in over the counter pain relievers like Tylenol) may cause damage to the liver. A researcherwants to conduct a study to estimate the proportion of acetaminophen users who have liver damage. Forparticipating in this study, he will pay each subject $20 and provide a free medical consultation if the patienthas liver damage.(a) If he wants to limit the margin of error of his 98% confidence interval to 2%, what is the minimumamount of money he needs to set aside to pay his subjects?(b) The amount you calculated in part (a) is substantially over his budget so he decides to use fewer subjects.How will this affect the width of his confidence interval?
Socially conscious investors screen out stocks of alcohol and tobacco makers, firms with poor environmental records, and companies with poor labor practices. Some examples of "good," socially conscious companies are Johnson and Johnson, Dell Computers, Bank of America, and Home Depot. The question is, are such stocks overpriced? One measure of value is the P/E, or price-to-earnings ratio. High P/E ratios may indicate a stock is overpriced. For the S&P Stock Index of all major stocks, the mean P/E ratio is u 19.4. A random sample of 31 "socially conscious" stocks gave a P/E ratio sample mean of x 18.3, with sample standard deviation s = 4.2. At a 10% level of significance does this indicate that the mean P/E ratio of all socially conscious stocks is different (either way) from the mean P/E ratio of the S&P Stock Index? = = What distribution will be used for this test? Student's t Is this test right-tailed, left-tailed, or two-tailed? two-tailed Using the critical region method which…
2. Predicting Life ExpectancyWe have attempted to predict a country's life expectancy based on the percent of government expenditure on health care, using a sample of fifty countries in the dataset SampCountries. We now add to the model the variables population (in millions), percentage with Internet, and birth rate (births per 1000). Note that the Internet value is missing for South Sudan, so the model is fit with the other 49 countries. The table below shows some computer output from fitting this model. . Estimate Std. Error t-value Pr ( > t ) (Intercept) 76.24 4.83 15.77 0.0000 Health 0.131 0.222 0.59 0.5557 Population -0.0003 0.0128 -0.03 0.9794 Internet 0.1118 0.0438 2.55 0.0142 BirthRate -0.594 0.122 -4.86 0.00002 Country Population Health BirthRate LifeExpectancy Iceland 0.324 15.76 13.4 83.1 Kazakhstan 17.035 10.90 22.7 70.5 Lesotho 2.074 14.48 27.5 49.3 Uzbekistan 30.243 9.68 22.5 68.2 Peru 30.376 14.75 19.7 74.8 Iraq 33.417 5.99…
3. A magazine publishes a U.S. and a Canadian edition each week. There are 30,000 subscribers in the U.S. and 20,000 subscribers in Canada. Other copies are sold at newsstands. Postage and shipping costs average $80 per thousand copies in the U.S. and $60 per thousand copies in Canada. Surveys show that no more than 120,000 copies of each issue can be sold (including subscriptions) and that the number of copies of the Canadian edition should not exceed twice the number of copies of the U.S. edition. The publisher can spend at most $8400 a month on postage and shipping. If profit is $200 per thousand copies on the U.S. edition and $150 per thousand copies on the Canadian, how many copies of each should be printed to maximize profit, and what will that profit be?
An insurance company offers four different deductible levels-none, low, medium, and high-for its homeowner's policyholders and three different levels-low, medium, and high-for its automobile policyholders. The accompanying table gives proportions for the various categories of policyholders who have both types of insurance. For example, the proportion of individuals with both low homeowner's deductible and low auto deductible is 0.05 (5% of all such individuals). Homeowner's N L M н Auto L 0.04 0.05 0.05 0.02 M 0.07 0.11 0.20 0.11 0.02 0.03 0.15 0.15 Suppose an individual having both types of policies is randomly selected. (a) What is the probability that the individual has a medium auto deductible and a high homeowner's deductible? (b) What is the probability that the individual has a low auto deductible? A low homeowner's deductible? auto deductible homeowner's deductible (c) What is the probability that the individual is in the same category for both auto and homeowner's deductibles?…
An insurance company offers four different deductible levels-none, low, medium, and high-for its homeowner's policyholders and three different levels-low, medium, and high-for its automobile policyholders. The accompanying table gives proportions for the various categories of policyholders who have both types of insurance. For example, the proportion of individuals with both low homeowner's deductible and low auto deductible is 0.07 (7% of all such individuals). Auto L M H Homeowner's NLMH Suppose an individual having both types of policies is randomly selected. (a) What is the probability that the individual has a medium auto deductible and a high homeowner's deductible? 0.04 0.07 0.05 0.02 0.07 0.09 0.20 0.11 0.02 0.03 0.15 0.15 (b) What is the probability that the individual has a low auto deductible? A low homeowner's deductible? auto deductible homeowner's deductible (c) What is the probability that the individual is in the same category for both auto and homeowner's deductibles?…
Help please. I am extremely confused and do not understand this! Can I get help with all parts please?
A report states the following percentiles corresponding to the amount of student borrowing for college graduates. 10th percentile $0 25th percentile $0 50th percentile $11,000 75th percentile $24,600 90th percentile $39,3000 For each of these percentiles, write a sentence interpreting the value of the percentile.
7. a. A student has final examination grades of 95, 80, 75, 78, 86 in history, English, chemistry, calculus and statistics. If the respective credits of the five courses are 3, 3, 4, 4 and 1, what then is the weighted average grade of the student? b. Somebody's invests $1,000 at a rate of 7%, $3,000 at a rate of 7.5% and $16,000 at a rate of 8%. What is the overall percentage yielding in this investment? c. A student has scored 88% in home assignments, 97% in midterm examination and 98% in the final examination of probability and statistics course. If the respective points are 25, 25 and 50, what then is the overall percentage of the student in the course?
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?.
C8. According to the Pew Research Center (2015), recent immigrants are better educated than earlier immigrants to the United States. The change was attributed to the availability of better education in each region or country of origin. The percentage of immigrants 25 years of age and older who completed at least high school is reported in this table for 1970 to 2013. Write a statement describing the change over time in the percentage who completed at least a high school degree. 1970 1980 1990 2000 2013 Mexico 14 17 26 30 48 Other Central/South America 57 53 60 66 Asia 75 72 75 82 84 48 68 81 87 95 Europe 36 48 52 58 72 Caribbean 81 91 88 85 85 Africa Source: Pew Research Center, Modern Immigration Wave Brings 59 Million to U.S., Driving Population Growth and Change Through 2065, 2015. Retrieved from https://www.pewresearch.org/hispanic/2015/09/28/modern- immigration-wave-brings-59-million-to-u-s-driving-population-growth-and-change-through-2065/ 52
According to a New York Times/CBS poll, 76% agreed that it should be the government's responsibility to provide a decent standard of living for the elderly, and 35% agreed that it would be a good idea to invest part of their Social Security taxes on their own. What is the smallest percentage of people who could have agreed with both statements?

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