8. The number of newly reported cases of diphtheria and the number of diphtheria-associated deaths in the United States by decade for the interval 1940 to 1989 is shown in Table 2. Calculate the Diphtheria case fatality for each decade. Describe diphtheria's presence in the population by interpreting the table below in 3 sentences or less. Table 2 Number of Cases and Deaths from Diphtheria by Decade, United States, 1940 - 1989 Decade # New cases # Deaths 1940 1949 140,399 11,288 1950 - 1959 23,720 1,801 1960 - 1969 3,555 401 1970-1979 2,013 88 1980 - 1989 25 4 Case Fatality (%)

8. The number of newly reported cases of diphtheria and the number of diphtheria-associated deaths in the United States by decade for the interval 1940 to 1989 is shown in Table 2. Calculate the Diphtheria case fatality for each decade. Describe diphtheria's presence in the population by interpreting the table below in 3 sentences or less. Table 2 Number of Cases and Deaths from Diphtheria by Decade, United States, 1940 - 1989 Decade # New cases # Deaths 1940 1949 140,399 11,288 1950 - 1959 23,720 1,801 1960 - 1969 3,555 401 1970-1979 2,013 88 1980 - 1989 25 4 Case Fatality (%)

Essentials of Business Analytics (MindTap Course List)

2nd Edition

ISBN:9781305627734

Author:Jeffrey D. Camm, James J. Cochran, Michael J. Fry, Jeffrey W. Ohlmann, David R. Anderson

Publisher:Jeffrey D. Camm, James J. Cochran, Michael J. Fry, Jeffrey W. Ohlmann, David R. Anderson

Chapter6: Statistical Inference

Section: Chapter Questions

Problem 44P: The Port Authority also wants to determine if the gender profile of its customers has changed since...

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A study is conducted among senior citizen 60 - 95 years of age staying in home for the aged. We are interested in comparing the mortality experience of the seniors in home for the aged with national mortality rates. Suppose that of the 1000 seniors in this age group, 33% are 60 - 69 years of age, 48% are 70 - 79, 16% are 80 - 89, and 3% are 90 - 95. If annual mortality rate are at 5.7% in 60 - 69, 1.8% in 70 - 79, 0.25% in 80 - 89, and 0.07% in 90 - 95, then what is the projected annual mortality rate in the home for the aged as a whole?
The percentage y of U.S. households owning Individual Retirement Accounts (IRAS) in year xis approximated by the equation 0.076(x-2000) = 15y- 5.16. Assuming this equation remains valid, use a calculator to determine in which year 40% of households will own an IRA. (Data from: ProQuest Statistical Abstract of the United States: 2013.)
The following table shows an example of gross domestic product values for five countries over six years in equivalent U.S. dollars (). a. How could you improve the readability of this table? b. The file GDPyears contains sample data from the United Nations Statistics Division on 30 countries and their GDP values from Year 1 to Year 6 in US. Create a table that provides all these data for a user. Format the table to make it as easy to read as possible. Hint: It is generally not important for the user to know GDP to an exact dollar figure. It is typical to present GDP values in millions or billions of dollars.
As was discussed in the Analytics in Action from Chapter 2, the U.S. Census Bureau is a leading source of quantitative data related to the people and economy of the United States. The crosstabulation below represents the number of households (1,000s) and the household income by the highest level of education for the head of household (U.S. Census Bureau web site, 2013). Use this crosstabulation to answer the following questions. a. Develop a joint probability table. b. What is the probability the head of one of these households has a masters degree or higher education? c. What is the probability a household is headed by someone with a high school diploma earning 100,000 or more? d. What is the probability one of these households has an income below 25,000? e. What is the probability a household is headed by someone with a bachelors degree earning less than 25,000? f. Are household income and educational level independent?
According to the Census Bureau, in October 2019, the average house price in the United States was $368,600. In October 2000, the average price was $197,700. What was the annual increase in the price of the average house sold? (Do not round intermediate calculations and enter your answer as a percent rounded answer to 2 decimal places, e.g., 32.16.) Annual increase in selling price
The following table shows an example of gross domestic product values for five countries from 2005 to 2010 in equivalent U.S. dollars (). a. How could you improve the readability of this table? b. The file GDPyears contains sample data from the United Nations Statistics Division on 30 countries and their GDP values from 2005 to 2010 in U.S. dollars (). Create a table that provides all these data for a user. Format the table to make it as easy to read as possible. Hint: It is generally not important for the user to know GDP to an exact dollar figure. It is typical to present GDP values in millions or billions of dollars.
What percentage of the population live in their state of birth? According to the U.S. Census Bureaus American Community Survey, the figure ranges from 25% in Nevada to 78.7% in Louisiana. The average percentage across all states and the District of Columbia is 57.7%. The data in the file Homestate are consistent with the findings in the American Community Survey. The data are for a random sample of 120 Arkansas residents and for a random sample of 180 Virginia residents. a. Formulate hypotheses that can be used to determine whether the percentage of stay-at-home residents in the two states differs from the overall average of 57.7%. b. Estimate the proportion of stay-at-home residents in Arkansas. Does this proportion differ significantly from the mean proportion for all states? Use = 0.05. c. Estimate the proportion of stay-at-home residents in Virginia. Does this proportion differ significantly from the mean proportion for all states? Use = 0.05. d. Would you expect the proportion of stay-at-home residents to be higher in Virginia than in Arkansas? Support your conclusion with the results obtained in parts (b) and (c).
According to the Census Bureau, in October 2016, the average house price in the United States was $27,058. 7 years earlier, the average price was $22,008. What was the annual increase in the price of the average house sold? Multiple Choice 3.29% 2.70% -2.91% 3.59% 3.00%
The accompanying graph depicts unemployment insurance benefits paid by the U.S. government as a percentage of GDP over time. FRED 2.5 (Bil. of $/Bil. of $)*100 2.0 1.5 1.0 0.5 0.0 (Personal current transfer receipts: Government social benefits to persons: Unemployment insurance/Gross Domestic Product)*100 1980 1990 2000 2008: 0.34631 2000 2010 2020 Source: U.S. Bureau of Economic Analysis Customize | Download Data | FRED - Economic Data from the St. Louis Fed c. What is the maximum amount spent on unemployment insurance, as a percentage of GDP, to combat the 2008- 2009 recession? % of GDP B
A study entitled "Antidepressant Medication and Breast Cancer Risk" (Amer. J. of Epi, late 1990's) stated in the methods section of the paper that "Cases were an age-stratified (< 50 and ≥ 50 years of age) random sample of women aged 25-74 years diagnosed with primary breast cancer during 1995 and 1996 (pathology report confirmed) and recorded in the population-based Ontario Cancer Registry. As the 1-year survival for breast cancer is 90%, surrogate respondents were not used. Population controls, aged 25-74 years, were randomly sampled from the property assessment rolls of the Ontario Ministry of Finance; this database includes all home owners and tenants and lists age, sex, and address." Question: Discuss the authors' approach to the identification of cases with respect to the potential for selection bias.
The accompanying graph depicts unemployment insurance benefits paid by the U.S. government as a percentage of GDP over time. FRED 2.5 (Personal current transfer receipts: Government social benefits to persons: Unemployment insurance/Gross Domestic Product)*100 (Bil. of $/Bil. of $)*100 2.0 1.5 1.0 0.5 0.0 1980 1990 2000 2000 2010 2020 Source: U.S. Bureau of Economic Analysis Customize | Download Data | FRED - Economic Data from the St. Louis Fed ood. In the historical series, in what year was the most spent on unemployment insurance as a percentage of GDP? Macmillan Learning Year with highest percentage: 2010 Incorrect Answer 0
The results of a national survey showed that on average, adults sleep 6.9 hours per night. Suppose that the standard deviation is 1.2 hours and that the number of hours of sleep follows a bell-shaped distribution. a. Use the empirical rule to calculate the percentage of individuals who sleep between 4.5 and 9.3 hours per day. b. What is the z-value for an adult who sleeps 8 hours per night? c. What is the z-value for an adult who sleeps 6 hours per night?