2. A survey of 1,000 U.S. government employees who have an advanced college degreeproduced the following responses to the offering of a promotion to a higher gradeposition that would involve moving to a new locationMarriedPromotion Both SpousesProfessionalOne SpouseProfessionalUnmarriedTotalRejectedAccepted1845617257276314153743Total4603701701,000that a randomly selected government employeea. What is the probabiadvanced college degree would not accept a promotion?b. What is the probability that a randomly selected government employee having anadvanced college degree has a spouse with a professional position?ving an

Answered: 2. A survey of 1,000 U.S. government…

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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There is an archaeological study area located in southwestern New Mexico. Potsherds are broken pieces of prehistoric Native American clay vessels. One type of painted ceramic vessel is called Mimbres classic black-on-white. At three different sites, the number of such sherds was counted in local dwelling excavations. Site I Site II Site III 67 26 19 32 13 35 21 59 72 13 60 28 75 12 56 10 25 Shall we reject or not reject the claim that there is no difference in population mean Mimbres classic black-on-white sherd counts for the three sites? Use a 1% level of significance. (b) Find SSTOT, SSBET, and SSW and check that SSTOT = SSBET + SSW. (Round your answers to three decimal places.) SSTOT = ? SSBET = ? SSW = ? Find d.f.BET, d.f.W, MSBET, and MSW. (Round your answers for MSBET, and MSW to two decimal places.) d.f.BET = ? d.f.W = ? MSBET = ? MSW = ? Find the value of the sample F statistic. (Round your answer to two decimal places.)What…
Agreed to participate Did not agree to Participate Total Contacted 20 15 35 African American 12 15 27 Asian American 50 37 87 Latina, Hispanic 37 23 60 White 119 90 209 TOTALS To get familiar with the data, answer the following: a) What percentage of women overall were: African American Asian American Latina/Hispanic White b) What percentage of women agreed to participate overall?
College Degree Recipients A survey of 800 recent degree recipients found that 158 received associate degrees; 451, bachelor degrees, 21 first-professional degrees; 154, master degrees; and 16, doctorates. Is there sufficient evidence to conclude that at least one of the proportions differs from a report which stated that 23.3% were associate degrees; 51.1%, bachelor degrees; 3%, first professional degrees; 20.6%, master degrees; and 2%, doctorates? Use =α0.10.
A polling organization contacts 1581 teenagers who are 16 to 19 years of age and live in North America and ask whether or not they had driven a car on a highway recently. What is the population in the study? A. Teenagers who are 16 to 19 years of age B. Teenagers who are 16 to 19 years of age and live in North America C. Teenagers who are 16 to 19 years of age and have driven a car in a highway D. Teenagers who are 16 to 19 years of age and live in North America and driven a car in a highway What is the sample in the study? A. Teenagers who are 16 to 19 years of age and live in North America B. The 1581 who are 16 to 19 years of age and have driven a car in the highway C.The 1581 who are 16 to 19 years of age and live in North America D. The 1581 who are 16 to 19 years of age
(Fill in the blank) Out of 850 people sampled, 595 said that they supported candidate Johnson. The researchers conclude that they are 95% confident that, in the population, the true percentage of people who support candidate Johnson is between 66% and 74%. Use this information to answer the following questions. a) The percentage of people in the sample who support candidate Johnson, called the sample statistic, is %. Answer: b) The margin of error is Answer: c) The confidence interval can be written as %+ Answer for first blank space: Answer for second blank space:
There is an archaeological study area located in southwestern New Mexico. Potsherds are broken pieces of prehistoric Native American clay vessels. One type of painted ceramic vessel is called Mimbres classic black-on-white. At three different sites, the number of such sherds was counted in local dwelling excavations. Site I Site II Site III 68 23 14 30 19 38 20 55 67 19 68 22 81 10 50 19 23 Shall we reject or not reject the claim that there is no difference in population mean Mimbres classic black-on-white sherd counts for the three sites? Use a 1% level of significance. (b) Find SSTOT, SSBET, and SSW and check that SSTOT = SSBET + SSW. (Round your answers to three decimal places.) SSTOT = SSBET = SSW = Find d.f.BET, d.f.W, MSBET, and MSW. (Round your answers for MSBET, and MSW to two decimal places.) d.f.BET = d.f.W = MSBET = MSW = Find the value of the sample F statistic. (Round your answer to two decimal places.)What…
Rachel Green, a fashion buyer at Ralph Lauren, wanted to know which seasonal clothing line Ralph Lauren customers prefer. She randomly selected 200 Ralph Lauren customers to survey about their seasonal preferences. She asked the following question: "Which seasonal clothing line is your favorite: spring, summer, fall, or winter?" The results were as follows: Spring: 10 Summer: 11 Fall: 149 Winter: 20 Based ONLY on this information (do not try to infer anything else!), answer the following questions. Did sampling bias occur? Why or why not? Did response bias occur? Why or why not? Did nonresponse bias occur? Why or why not?
The table below shows the results of a survey that asked 1044 adults from a certain country if they favored or opposed a tax to fund education. A person is selected at random. Complete parts (a) through (c). Support Oppose Unsure Total Males 151 319 13 483 Females 237 305 19 561 Total 388 624 32 1044
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)?
A salesman makes initial telephone contact with potential customers in an effort to assess whether a follow-up visit to their homes is likely to be worthwhile. His experience suggests that 40% of the initial contacts lead to follow-up visits. Suppose he contacts 100 people by telephone and the sample proportion of the follow-up visit is calculated. Which of the following statements is (are) correct? This is a multiple-answer question. It may have more than one correct answers. i. The sample proportion has a normal distribution with a mean of 0.40 and a standard deviation of 04x0.4 = 0.049. 100 Oil. The sample proportion has a normal distribution with a mean of 0.40 and a standard deviation of 0.6. iii. The probability that the sample proportion of the follow-up visit is more than 50% is P(p>0.5) = P(z>04-05)=P(z>-2.04) = 1-0.0207 = 0.9793. iv. The probability that the sample proportion of the follow-up visit is more than 50% is P(p>0.5)=P(2> 05 = P(Z > 2.04) = 1-0.9793= 0.0207.…
You create three versions of a survey, each with different ways of phrasing the questions (positive, negative, or neutral). You randomly assign participants to one of the three surveys, each of which has 20 items for which participants rate their agreement. After collecting the surveys, you calculate an average agreement score for each participant. If testing hypotheses about question phrasing on agreement, it would be most appropriate to calculate a. 1) O One-way (independent) ANOVA ›2)Repeated measures ANOVA 3) factorial ANOVA Factorial ANOVA
The nonprofit group Public Agenda conducted telephone interviews with three randomly selected groups of parents of high-school children. There were 202 black parents, 202 Hispanic parents, and 201 white parents. The sample survey asked the parents to respond to the statement, "A college education has become as important as a high school diploma used to be." Here are the counts of responses: Strongly agree Somewhat agree Somewhat disagree Strongly disagree TOTAL Black parents 154 27 11 10 202 Hispanic White parents 144 37 13 8 202 parents 125 50 18 8 201 Write a brief report on the similarities or differences among the three groups of parents in their attitudes towards the importance of a college education. Include a graph or graphs and a test of significance.

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