identify a column in the table with data at a ratio level
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Ratios
A ratio is a comparison between two numbers of the same kind. It represents how many times one number contains another. It also represents how small or large one number is compared to the other.
Trigonometric Ratios
Trigonometric ratios give values of trigonometric functions. It always deals with triangles that have one angle measuring 90 degrees. These triangles are right-angled. We take the ratio of sides of these triangles.
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- Violence against women 2009 In its study When MenMurder Women: An Analysis of 2009 Homicide Data,2011, the Violence Policy Center (www.vpc.org) reportedthat 1818 women were murdered by men in 2009. Ofthese victims, a weapon could be identified for 1654 ofthem. Of those for whom a weapon could be identified,861 were killed by guns, 364 by knives or other cuttinginstruments, 214 by other weapons, and 215 by personalattack (battery, strangulation, etc.). The FBI’s UniformCrime Report says that, among all murders nationwide,the weapon use rates were as follows: guns 63.4%, knives13.1%, other weapons 16.8%, personal attack 6.7%. Isthere evidence that violence against women involvesdifferent weapons than other violent attacks in theUnited States?In Pakistan, thousands of graduates got degrees from different universities every year. Most of them don't get jobs because of the economic crises. The Jobless rate continued to increase and few of them are involved in illegal activities that cause increasing in the crime rate. The following data show the jobless rate and the number of crimes for 10 different cities: City Jobless Rate (%) Crime Rate (%) Karachi 14 3 Lahore 21 4 Islamabad 16 2 Multan 28 4 Faisalabad 13 3 Jacobabad 34 5 Hyderabad 19 4 Peshawar 30 5 Quetta 42 5 Larkana 33 4 Use Microsoft Excel to compute the correlation coefficient. Is there a positive correlation between the jobless rate and the percentage of crime rate? Discuss it?The National Center for Health Statistics, housed within the U.S. Centers for Disease Control and Prevention (CDC), tracks the number of adults in the United States who have health insurance. According to this agency, the uninsured rates for Americans in 2018 are as follows: 5.1% of those under the age of 18, 12.4% of those ages 18-64, and 1.1% of those 65and older do not have health insurance (CDC website). Approximately 22.8% of Americans are under age 18, and 61.4% of Americans are aged 18-64. Given that the person is an uninsured American, what is the probability that the person is 65 or older (to 3 decimals)?
- 5) A Human Resources manager is studying the earnings of workers. The manager takes a sample of 100 workers and records there earnings along with descriptive variables: Industry (1 = Manufacturing, 2 = Construction, 0 = other), Occupation (1 = Management, 2 = Sales, 3 = Clerical, 4 = Service, 5 = Profession, 0 = other), Education (in years), Female (1 = Yes, 0 = No), Experience (work experience in years), Married (1 = Yes, 0 = No), Age (in years), Union (1 = Yes, 0 = No). The data appears in the Earnings worksheet in Chp 12 HW Problems data workbook on Moodle. a) State the hypothesis to determine if the proportion of female workers depends on occupation. b) Use Excel to construct a two-way pivot table showing the number of workers for each combination of Occupation and Female (1 = Yes and 2 = No). c) Test the hypothesis using a = 0.05. d) What is the p-value for the hypothesis test. e) Use the multiple comparison procedure with a = 0.05 to determine which occupations…Say that COOP Ale Works, an Oklahoma brewery, uses three production lines to manufacture beer cans. The table below gives percentages of nonconforming cans, categorized by the type of nonconformity, for each of the three lines during a particular year. During this period, line 1 produced 500 nonconforming cans, line 2 produced 400 such cans, and line 3 was responsible for 600 nonconforming cans. Suppose that one of these 1500 cans was selected at random. Table attached in Image. a. What is the probability that the can was produced by line 1? b. What is the probability that the reason for nonconformance is a crack? c. If the selected can came from line 1, what is the probability that it had a blemish? d. Given that the selected can had a surface defect, what is the probability that it came from line 2?Each of the students in the DMS 111 January-April 2017 class belongs to at least one of three most popular student professional associations at University of Nairobi, School of Business, Mombasa Campus; Finance Students Association (FISA), Operations Management Students Association (OMSA) and Marketing Students Association (MSA). A survey shows that 27 are members of FISA, 40 are members of OMSA and 26 are members of MSA. 6 students belong to all the three associations. Of the students who are members of OMSA, 9 are also members of FISA, while 21 do not belong to any other association. 10 are members of FISA and MSA but not OMSA. Required (i) Present this information on a Venn diagram. (ii) How many students are members of MSA only? (iii) Determine the number of students in the DMS 111 January-April 2017 class. (iv) Compute the proportion of students who belong to exactly two professional associations.
- Veritone is an artificial intelligence company which proposed the Veritone’s aiWARE technology and solutions. The company’s product and services are used by many industries in the areas of M, N and O. Thirty percent are in areas M and N, while 40% are in O. Only 20% of M areas are primary, whereas the percentages for N and O are 30% and 35%, respectively. Assume that one area has been selected randomly to use the product and services of that company. If the area selected is a secondary, present the probability that it has a N area.The management of a company know that in the past, 38% of their sales were from people under 30 years old, 45% of their sales were from people who are between 30 and 50 years old, and 17% of their sales were from people who are over 50 years old. A sample of 225 customers was taken to see if these market shares had changed. In the sample, 75 people were under 30 years old, 100 people were between 30 and 50 years old, and 50 people were over 50 years old. What is the expected counts under the null for people over 50 years old? (round to 2 decimals) The value of the test statistic χ2 is: (round to 4 decimals) The p-value is: (round to 4 decimals) The conclusion is:The training director of a company is trying to evaluate three different methods of training new employees. The first method assigns each to an experienced employee for individual help in the factory. The second method puts all new employees in a training room separate from the factory, and the third method uses films and programmed learning materials. The training director chooses 18 new employees assigned at random to the three training methods and records their daily production after they complete the programs. Below are productivity measures for individuals trained by each method. Method 1 Method 2 Method 3 45 59 41 40 43 37 50 47 43 39 51 40 53…