7. A researcher reviewing various cellular phone services surveyed 200 customers and asked each one to rank four service providers in order of preference. The group's results are shown below. Using the Borda count method, which provider is the favorite of these customers? RANKING SMART 4 1 GLOBE SUN 4 4 TALK N TEXT No. of votes: 26 32 47 25 56 35 2. 4, 1. 3. 3. 2. 4) 2. 2. 3. 4. 2. 1. 3. 2. 1. 3. 1. 3.
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- The number of people voting LAKAS or KAMPI below the age of 40 and 40 plus in a random sample of 30 voters in a city is given in contingency table below. Is voting LAKAS or KAMPI independent of the voter being below the age of 40 or 40 plus in this city at the 5% level of significance?A serving for brand recognition is done and it is determined that 68% of consumers have heard of dull computer company. A survey of 800 randomly selected consumers is to be conducted. For such groups of 800, would it be unusual to get 490 for consumers who recognize the dull computer company name?The television show CSI: Shoboygan has been successful for many years. That show recently had a share of 19, which means, that among the TV sets in use, 19% were tuned to CSI: Shoboygan. An advertiser wants to verify that 19% share value by conducting its own survey, and a pilot survey begins with 12 households have TV sets in use at the time of a CSI: Shoboygan broadcast.
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- Researchers constructed two test sheets, each sheet including 20 photos of the faces of dog–owner pairs taken at a dog lovers' field festival. The 20 sets of dog–owner pairs on the two sheets were equivalent with respect to breed, diversity of appearance, and gender of owners. On the first sheet, the dogs were matched with their owners, while on the second sheet, the dogs and owners were deliberately mismatched. Three experiments were conducted, and in all experiments, subjects were asked to "choose the set of dog–owner pairs that resemble each other, Sheet 1 or Sheet 2," and were simply told the aim of the research was a "survey on dog–owner relationships." In the first experiment, the original sheets were shown to subjects; in the second experiment, just the "mouth region" of the owners was blacked out in all the pictures on both sheets; in the third experiment, just the "eye region" of the owners was blacked out. Subjects were assigned at random to the three experimental groups, and…The University of the East Europe is interested in the overall performance of its studentsin the academic year 2020/2021. There were 1460 students registered for this academicyear. The University decides to select a sample of 150 students from each of the 5faculties- Science, Medicine, Law, Social Science and Humanities in proportion to thenumber of students in each faculty.The Institute of Education Sciences measures the high school dropout rate as the percentageof 16-through 24-year-olds who are not enrolled in school and have not earned a high schoolcredential. Last year, the high school dropout rate was 8.1%. A polling company recently took asurvey of 1,000 people between the ages of 16 and 24 and found that 6.5% of them are highschool dropouts. The polling company would like to determine whether the dropout rate hasdecreased at a 5% significance level
- The National Restaurant Association is interested in determining if there is a relationship between the type of pizza pie which Americans prefer and the region of the country in which they live. The association randomly selects 285 Americans and records the category of pizza pie which best describes their preference and the region of the country in which they live. The results are as follows: Type of Pizza Region Pie Preferred North South East West Thin Crust 40 30 35 45 Thick Crust 17 15 21 22 Pan Pizza 15 15 15 15 ----------------------------------------------------------- At α = .10, what can the Association conclude?A researcher wanted to measure if the voting preferences between the brand of soaps are the different using 5% level of significance. Assume the data is normally distributed.Ten individuals participated in a taste test involving two brands of a product. Sample results show 7 preferred brand A, 2 preferred brand b, and 1 was unable to state a preference.With a = .05, test for a significant difference in the preferences for the two brands. Whatis your conclusion?