A Gallup Poll of U.S. adults indicated that Kentucky is the state with the highest percentage of smokers.† Consider the following hypothetical data from the Tri-State region, an area that comprises northern Kentucky, southeastern Indiana, and southwestern Ohio. (Round your numeric answers to four decimal places.)StateSmokerNon-SmokerKentucky43174Indiana31133Ohio35187Total109494(a)Use the data to compute the probability that an adult in the Tri-State region smokes. (b)What is the probability of an adult in each state of the Tri-State region being a smoker?Kentucky IndianaOhio

To determine the probability of a smoker, we need to use the formula below: Probability of a smoker…

se the data to compute the probability that an adult in the Tri-State region smokes. (b) What is the probability of an adult in each state of the Tri-State region being a smoker? Kentucky Indiana Ohio

se the data to compute the probability that an adult in the Tri-State region smokes. (b) What is the probability of an adult in each state of the Tri-State region being a smoker? Kentucky Indiana Ohio

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 5P: One of the questions in the Pew Internet & American Life Project asked adults if they used the...

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State	Smoker	Non-Smoker
Kentucky	43	174
Indiana	31	133
Ohio	35	187
Total	109	494

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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).
Reports have found that many U.S. adults would rather live in a different type of community than the one in which they are living now. A national survey of 2,260 adults asked: Where do you live now? and What do you consider to be the ideal community? Response options were City (C), Suburb (S), Small Town (T), or Rural (R). A representative portion of this survey for a sample of 100 respondents is as follows: a. Provide a percent frequency distribution and a histogram for each question. b. Where are most adults living now? c. Where do most adults consider the ideal community to be? d. What changes in living areas would you expect to see if people moved from where they currently live to their ideal community?
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?
not sure how to select the marketing subject so this was all i could do:The U.S. Census Bureau provides considerable demographic information that is useful for marketers. Assume that the following table provides a sample of such population data. What percentage change in the total and Hispanic populations occurred in each state between 2000 and 2010?,2000,,2010,State,Total,Hispanic,Total,HispanicGeorgia,"8,102,320","434,447","9,687,823","853,470"Michigan,"9,930,379","323,089","9,883,148","436,324"California,"33,814,423","10,964,521","37,254,730","14,014,369"
A study of homeowners in the 5th congressional district in Maryland found that their annual household incomes are normally distributed with a mean of $41,182 and a standard deviation of $11,990 (based on data from Nielsen Media Research). a. What percentage of household incomes are greater than $30,000?b. What percentage of household incomes are between $25,000 and $40,000?c. If an advertising campaign is to be targeted at those whose household incomes are in the top 20%, find the minimum income level for this target group?
Consider a survey involving the cookie preferences of a sample of 1,214 adults. If 9% answered "sugar/shortbread," find the decimal and reduced fraction of that percentage.
The following data, taken from 8 towns in Alberta, are the percentage of residents who are university graduates and the median household incomes (in $ 1000's) for all households in each town. Graduates (%) Median Income ($ 1000) 61.7 47.6 50.9 34.1 57.1 31.5 56.4 41.3 42.8 34.5 42.1 28.1 33.2 23.1 19.2 20.4 (a) State the slope term and the Y -intercept term of the least squares regression line which attempts to predict the median income of a town in Alberta based on its linear relationship with the percentage of residents who are university graduates.(b) Find the correlation coefficient(c) As the percenage of university graduates increases by 10%, the median income will change (in $ 1000s) by (make sure you include the positive or negative sign) (d) What percentage of the variation in the variable Median Income is not explained by its linear relationship to the variable Percentage of University Graduates? Use at least one place after the decimal.(e) Using your…
In a survey of 400400 likely voters, 216216 responded that they would vote for the incumbent and 184184 responded that they would vote for the challenger. Let p denote the fraction of all likely voters who preferred the incumbent at the time of the survey, and let ModifyingAbove p with caretp be the fraction of survey respondents who preferred the incumbent. Using the survey results, the estimated value of ModifyingAbove p with caretp is 0.54000.5400. (Round your response to four decimal places.) Part 2 Using ModifyingAbove p with caretp(1minus−ModifyingAbove p with caretp)/n as the estimator of the variance of ModifyingAbove p with caretp, the standard error of the estimator is 0.02700.0270. (Round your response to four decimal places.) Part 3 The p-value for the test Upper H Subscript o Baseline : p equals 0.5 versus Upper H 1 : p not equals 0.5Ho: p=0.5 versus H1: p≠0.5 is 0.13840.1384. (Round your response to three decimal places.) Part 4 The p-value for the test…
One of the questions in the Pew Internet & American Life Project asked adults if they used the Internet at least occasionally. The results showed that 454 out of 478 adults aged 18–29 answered Yes; 741 out of 833 adults aged 30–49 answered Yes; and 1,058 out of 1,644 adults aged 50 and over answered Yes. Develop a point estimate of the proportion of adults aged 18–29 who use the Internet. Develop a point estimate of the proportion of adults aged 30–49 who use the Internet. Develop a point estimate of the proportion of adults aged 50 and over who use the Internet. Comment on any apparent relationship between age and Internet use. Suppose your target population of interest is that of all adults (18 years of age and over). Develop an estimate of the proportion of that population who use the Internet.
The file TaxData contains information from federal tax returns filed in 2007 for all counties in the United States (3,142 counties in total). Create a PivotTable in Excel to answer the questions below. The PivotTable should have State Abbreviation as Row Labels. The Values in the PivotTable should be the sum of adjusted gross income for each state. a. Sort the PivotTable data to display the states with the smallest sum of adjusted gross income on top and the largest on the bottom. Which state had the smallest sum of adjusted gross income? What is the total adjusted gross income for federal tax returns filed in this state with the smallest total adjusted gross income? (Hint: To sort data in a PivotTable in Excel, right-click any cell in the PivotTable that contains the data you want to sort, and select Sort.) b. Add the County Name to the Row Labels in the PivotTable. Sort the County Names by Sum of Adjusted Gross Income with the lowest values on the top and the highest values on the bottom. Filter the Row Labels so that only the state of Texas is displayed. Which county had the smallest sum of adjusted gross income in the state of Texas? Which county had the largest sum of adjusted gross income in the state of Texas? c. Click on Sum of Adjusted Gross Income in the Values area of the PivotTable in Excel. Click Value Field Settings. Click the tab for Show Values As. In the Show values as box, choose % of Parent Row Total. Click OK. This displays the adjusted gross income reported by each county as a percentage of the total state adjusted gross income. Which county has the highest percentage adjusted gross income in the state of Texas? What is this percentage? d. Remove the filter on the Row Labels to display data for all states. What percentage of total adjusted gross income in the United States was provided by the state of New York?
A Wall Street Journal subscriber survey asked 46 questions about subscriber characteristicsand interests. State whether each of the following questions provides categorical orquantitative data.a. What is your age?b. Are you male or female?c. When did you first start reading the WSJ? High school, college, early career, midcareer,late career, or retirement?d. How long have you been in your present job or position?e. What type of vehicle are you considering for your next purchase? Nine responsecategories include sedan, sports car, SUV, minivan, and so on.
2. Consider a survey involving the cookie preferences of a sample of 1,214 adults. If 24% answered "peanut butter," find the decimal and reduced fraction of that percentage.