What is the definition of a population?
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N642, Summer 2015, Class 3 Online Pop Stats Assignment & QuizUpload completed quiz through CanvasInstructions for class assignment: Watch videos and read Urdan chapters 1 through 4. Complete the attached quiz.Define the following in one phrase:Categorical Data & give an example of how it is displayed and what type of variable represents this data: _________________________________________________________Quantitative (Numerical) Data & give an example of how it is displayed and what type of variable represents this data:____________________________________________________________Explain the difference between descriptive and inferential samples:____________________________________________________________Answer the following questions by highlighting the answer in yellow:What is the definition of a population?a. the objects (people, animals, etc.) measured in an experimentb. objects that share characteristics defined by a researcherc. objects that share characteristics predicted by a studyd. objects selected randomlyWhich of the following is the best description of the purpose of a sample?a. to provide results that a researcher can generalize to a populationb. to provide data that a researcher can generalize to another samplec. to define who can and cannot be a research participantd. to provide access to research subjectsWhich of the following could be a population of interest in a study?a. women age 50 to 79b. women age 50 to 79 living in the United Statesc. women age 50 to 79 living in the United States who have at least one childd. Any of the above could be a population.Round 14.575 to two decimal places.a. 14.55 c. 14.57b. 14.56 d. 14.58What is a distribution?a. a data set with a large rangeb. a data set that has been sortedc. the whole set of values for one variable in a data setd. the whole set of variables in a data setWhat is frequency?a. a tally of the number of different values a variable can takeb. a tally of the number of occurrences of one value in a distributionc. a value that occurs often in the distributiond. a count of the total number of subjects represented in a distributionCalculate the mean for these data: 2, 2, 3, 3, 4, 6a. 3.00 c. 3.50b. 3.33 d. none of the aboveIn the following data set, which score is the outlier?27, 34, 36, 38, 74a. 27 c. 38b. 34 d. 74Find the median for this data set: 7, 8, 35, 36, 41, 90a. 35 c. 36b. 35.5 d. 36.5What is the first thing you would do to calculate the median for these data?1, 6, 13, 2, 5, 3, 27, 4a. Add the numbers together.b. Arrange the numbers in order.c. Count to find sample size.d. Decide whether there are an even or odd number.In the formula for the mean, , what does mean?a. sum of c. center ofb. son of d. score ofCalculate the most appropriate measure of central tendency for this data set of interval level numbers: 1, 1, 3, 5, 30a. median = 3b. mean = 8c. mode = 1d. Any of the aboveWhat percentile rank is the same as the median, and why?a. 49th: different number of scores above and belowb. 49th: equal number of scores above and belowc. 50th: different number of scores above and belowd. 50th: equal number of scores above and belowIdentify the mode in the following data set: 2, 3, 5, 8a. 2 c. 5b. 3 d. There is no mode.Standard deviation can be defined as an averge deviation between the scores and the mean in the distributionTrueFalseWhy should you wait until the end of your calculations and round your final answer?Rounding as you go takes more time than it is worth.Calculators can carry a lot of digits with no trouble.Rounding as you go may make the final answer less accurate.You would get the same result either way, so wait till the end.Tom was reading a report of a study and was trying to remember the difference between the small n and capital N. This is what he remembered: ‘n’ is the number of scores in the sample, and ‘N’ is the number of scores in the population.TrueFalseRange is basically a concept abouta. score meaning. c. score frequency.b. score distance. d. score importance.What is the range of the following data? 77, 89, 92, 92, 98a. 21 c. 77b. 22 d. 98What kinds of numbers result from calculating variance?a. non-negative numbers c. non-positive numbersb. non-zero numbers d. negative numbersIn the formula for estimated population variance, why is the denominator n–1?a. to correct for sampling limitationsb. to make the sample as large as the populationc. to put the variance in the same metric as the scoresd. to increase the rangeWhich of the following distributions is most likely to be negatively skewed?a. mile running speeds for a random sample of peopleb. mile running speeds for couch potatoesc. mile running speeds for Olympic runnersd. mile running speeds for people who attend the OlympicsA normal distribution looks most like which of the following shapes?a. a bellb. a top hatc. profile of a mountain range with many mountainsd. profile of a camel with two humpsKurtosis refers to a distribution’sa. outliers. c. height.b. modality. d. tilt.When a distribution has a peak that is higher than that found in a normal, bell-shaped distribution, it is called leptokurtic.TrueFalseA political candidate attracted mostly older voters. Which measure of central tendency would the press probably report in articles about his popularity?mean c. modemedian d. none of the aboveA survey question asked students to respond on a scale of 1 (strongly disagree) through 5 (strongly agree) to an opinion question. Use the graph to describe the results. Select all that apply.a. The most popular response was strongly agree.b. Most people agreed or strongly agreed with the statement.c. Very few people were neutral.d. About the same amount strongly agreed and strongly disagreed.e. The distribution is negatively skewed.f. The distribution is positively skewed.28. The level of significance usually set in nursing studies is at:(p < 0.5)(p < .05)(p < .03)(p < .01) . WITH BEST NURSING TUTORS TODAY AND GET AN AMAZING DISCOUNTThe post What is the definition of a population? appeared first on BEST NURSING TUTORS . Do you need a similar assignment done for you from scratch? We have qualified writers to help you. 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