B) Describe your table based on Sex, civil status and work status) Sex Cumulative Frequency Percent Valid Percent Percent Valid Male 321 47.8 47.8 47.8 Females 350 52.2 52.2 100.0 Total 671 100.0 100.0 Civil Status Cumulative Frequency Percent Valid Percent Percent Valid Married 333 49.6 49.6 49.6 Single 338 50.4 50.4 100.0 Total 671 100.0 100.0
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- According to the Department of Motor Vehicles (DMV), the entity in charge ofprovidingdrivinglicensesintheUnitedStates,itisillegaltodrivewithabloodalcoholcontentof0.08%ormoreif you are 21 or older. In the DMV’s guidelines to determine when a person is driving under the influence, itisindicatedthatfewer than five percent of the population weighing 100 pounds will exceed the 0.33 alcohol level. Assume this is accurate. If the Highway Patrol stops in a random day 200 unrelated cars where the individual weighs one hundred pounds, on a Friday night, what is the probability that six percent of more individuals stopped exceeds that 0.33 alcohol level?The Los Angeles City Controller's office calculated that in 2013, the city employed 4703047030 full‑time employees and 1014210142 part‑time employees. Assume that an outside advocacy group had been lobbying the Mayor's office to convert part‑time workers into full‑time workers throughout 2014. The Controller's office makes its calculations annually. Suppose that the outside advocacy group wanted to know the proportion of city employees (excluding per‑event employees) who are full‑time employees ?p in June 2014 to gauge if their lobbying efforts had been effective. Suppose that the group surveyed a random sample of 1000 city employees (excluding per‑event employees) in June 2014 and found that 845845 were full‑time employees and 155155 were part‑time employees. If the advocacy group planned to use a one‑sample z-z-test for a proportion to test their lobbying eforts, the appropriate null hypothesis would be and the appropriate alternative hypothesis would be Assume…According to the Pew Research Center,on the propotion of the American population who use only a cellular telephone (landline) is 0.37. Jason conducts a survey of one hundred fifty 20 to 24 year olds who live on their own and finds that 73 do not have a landline to their home. Does this provide sufficient evidence to conclude that the proportion of 20 to 24 year olds who live on their own and don't have a landline is greater than 0.37? Use a=0.10 level of significance. A) Verify that nP0(1-P0)>10 and n< 0.05N (Assume the population sizes is N=40 million) B) State the appropiate null and alternative hypotheses. C) Indicate whether the hypothesis is left, right, or two- tailed.
- According to the Pew Research Center,on the propotion of the American population who use only a cellular telephone (landline) is 0.37. Jason conducts a survey of one hundred fifty 20 to 24 year olds who live on their own and finds that 73 do not have a landline to their home. Does this provide sufficient evidence to conclude that the proportion of 20 to 24 year olds who live on their own and don't have a landline is greater than 0.37? Use a=0.10 level of significance. D) Compute the test statistic z0. Round to the nearest hundredth. E) Draw a normal model with the area that represents the P-value shaded. F) Determine and interpret the P-value. What is the conclusion of the hypothesis test?Following is a list of 21 African nations for which information is available on voter turnout (percentage of the voting age population) for president between 2005 and 2008. Compute and interpret the median and mean percentage turnout. TABLE 3.6 Presidential Voter Turnout, 21 African Countries, 2005–2008Country Year % Turnout VAPBurkina Faso 2005 36.4Cape Verde 2006 78.59Central African Republic 2005 45.14Chad 2006 71.4Comoros 2006 52.14Djibouti 2005 67.82Egypt 2005 16.41Gabon 2005 51.47Gambia 2006 50.66Guinea-Bissau 2005 66.84Kenya 2007 54.49Liberia 2005 59.01Madagascar 2006 50.85Mali 2007 48.18Mauritania 2007 53.55São Tomé and Príncipe 2006 69.76Senegal 2007 55.11Seychelles 2006 97.08Sierra Leone 2007 62.02Zambia 2008 34.18Zimbabwe 2008 47.27The following is a sample of 19 November utility bills (in dollars) from a neighborhood.What is the largest bill in the sample that would not be considered an outlier?52, 62, 66, 68, 72, 74, 76, 76, 76, 78, 78, 82, 84, 84, 86, 88, 90, 108, 110
- Following is a list of 21 African nations for which information is available on voter turnout (percentage of the voting age population) for president between 2005 and 2008. Compute and interpret the median and mean percentage turnout. Presidential Voter Turnout, 21 African Countries, 2005–2008 COUNTRY YEAR % Turnout VAP Burkina Faso 2005 36.4 Cape Verde 2006 78.59 Central African Rep. 2005 45.14 Chad 2006 71.4 Comoros 2006 52.14 Djibouti 2005 67.82 Egypt 2005 16.41 Gabon…A conservative radio talk show host with a large audience is interested in the proportion p ofadults in his listening area who think the drinking age should be lowered to eighteen. To findthis out, he poses the following question to his listeners: “Do you think that the drinking ageshould be reduced to eighteen in light of the fact that eighteen year‐olds are eligible for militaryservice?” He asks listeners to phone in and vote “Yes” if they agree the drinking age should belowered and “No” if not. Of the 100 people who phoned in, 70 answered “Yes.” a. List one source of sampling bias (i.e. bias based on the people included in the sample). b. List another source of bias (sampling or non-sampling).Of the 200 randomly selected local fishers, 28 are solely fishing as income source and 172 have alternative or supplemental livelihood such as getting employed as a construction worker, farmer, carpenter, motorcycle/tricycle driver, selling/vending souvenir and other products, or working in a passenger boat batil or tripolante (i.e., captain or crew). Their estimated monthly income (in PhP) are shown below. Using α = 0.05, is there a significant difference in the monthly income of fishers whose sole livelihood is fishing compared to those with alternative/supplemental income sources? Assume that the fishers income is normally distributed a) Analyze manually b) Analyse using SPSS
- The Russel Reynold Association surveyed retired senior executives who had returned to work. They found that after returning to work, 38% were employed by another organization, 32% were self-employed, 23% were either freelancing or consulting, and 7% had formed their own companies. To see if these percentages are consistent with those of Allegheny County residents, a local researcher surveyed 300 retired executives who had returned to work and found that 122 were working for another company, 85 were self-employed, 76 were either freelancing or consulting, and 17 had formed their own companies. State the null and alternative hypothesis and identify the claim, at α=0.10 to test the claim that the percentages are the same for those people in Allegheny Country.And a pool, 102 of 1020 randomly selected adults age 18 or older stated that they believe there is too little spending of national defense. Obtain a point estimate for the proportion of adults age 18 or older who filled there is too little spending on national defense.The American Association of Individual Investors (AAII) conducts a weekly survey of its members to measure the percent who are bullish, bearish, and neutral on the stock market for the next six months. For the week ending March 27, 2019, the survey results showed 33.2% bullish, 39.6% neutral, and 27.2% bearish. Assume these results are based on a sample of 300 AAII members.