4. In a study of how students give directions, forty volunteers were given the task ofexplaining to another person how to reach a destination. Researchers measured thefollowing five aspects of the subjects’ direction-giving behavior:• whether a map was available or if directions were given from memory without a map,• the gender of the direction-giver,• the distances given as part of the directions,• the number of times directions such as “north” or “left” were used,• the frequency of errors in directions.a) Identify each of the variables in this study, and whether each is quantitative orqualitative. For each quantitative variable, state whether it is discrete or continuousb) Was this an observational study or an experimental study? Explain your answer

4. In a study of how students give directions, forty volunteers were given the task ofexplaining to another person how to reach a destination. Researchers measured thefollowing five aspects of the subjects’ direction-giving behavior:• whether a map was available or if directions were given from memory without a map,• the gender of the direction-giver,• the distances given as part of the directions,• the number of times directions such as “north” or “left” were used,• the frequency of errors in directions.a) Identify each of the variables in this study, and whether each is quantitative orqualitative. For each quantitative variable, state whether it is discrete or continuousb) Was this an observational study or an experimental study? Explain your answer

Elementary Geometry for College Students

6th Edition

ISBN:9781285195698

Author:Daniel C. Alexander, Geralyn M. Koeberlein

Publisher:Daniel C. Alexander, Geralyn M. Koeberlein

Chapter7: Locus And Concurrence

Section7.2: Concurrence Of Lines

Problem 6E

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In a study of how students give directions, forty volunteers were given the task ofexplaining to another person how to reach a destination. Researchers measured thefollowing five aspects of the subjects’ direction-giving behavior:• whether a map was available or if directions were given from memory without a map,• the gender of the direction-giver,• the distances given as part of the directions,• the number of times directions such as “north” or “left” were used,• the frequency of errors in directions. Identify each of the variables in this study, and whether each is quantitative orqualitative. For each quantitative variable, state whether it is discrete or continuous. Was this an observational study or an experimental study? Explain your answer.
Identify surveys from a set of scenarios. Which of the following is NOT an example of a survey? a.) Every 100th person listed in the telephone directory was called and asked about their all-time favorite cartoon character. b.) A researcher is trying to determine if there is a relationship between the type of plant fertilizer used and the plant height. The researcher examined records for the past three years at a nearby greenhouse. c.) A human resources manager at a large company asked 50 employees in each department to rate the company on employee satisfaction. d.) A school is planning a field trip for all its students. Ten students are randomly selected from each grade and are asked where they want to go for the field trip.
Which of the following is NOT true of a bar chart? A) The bars can be either horizontal or vertical. B) It is used for numerical data. C) It can show either frequency or relative frequency. D) It is used for categorical data
A study is conducted in which people were asked whether they agreed or disagreed with the statement that there is only one true love for each person. The table below gives a two-way table showing the answers to this question as well as the education level of the respondents. A person's education is categorized as HS (high school degree or less), Some (some college), or College (college graduate or higher). Is the level of a person's education related to how the person feels about one true love? If there is a significant association between these two variables, describe how they are related. chi-square statistic = i 103.2 Agree 361 Disagree 555 Don't know HS Some College Total Total 163 469 18 28 197 786 30 934 660 1013 721 1810 76 2607 Table 1 Educational level and belief in One True Love Round your answer for the chi-square statistic to one decimal place, and your answer for the p-value to three decimal places.
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The police lieutenant in charge of the traffic division has reviewed the number of traffic citations issued per day by each of the 10 police officers in his division. The data were: 13, 21, 12, 34, 31, 13, 22, 26, 25, and 23. What is the mode of the number of citations issued per day? a. 22,5 b. 13,5 c. 22 d. 13
Public relations staff members at State U. phoned 850 local residents. After identifying themselves, the callers asked the survey participants their ages, whether they had attended college, and whether they had a favorable opinion of the university. The official report to the university's directors claimed that, in general, people had very favorable opinions about the university. a) Summarize the Who and What of these data with a complete sentence. b) Identify the variables, classify each as categorical or quantitative, and specify the units if relevant.
A study examined the interactions in a children's museum. (Interactions by visitors to the museum included show-and-tell, learning, teaching, refocusing, participatory play, advocating, and disciplining interactions.) Researchers observed a sample of 180 meaningful interactions, of which 86 were led by children and 94 were led by adult caregivers. Complete parts a through d below. a. Give a point estimate of the true proportion of all meaningful interactions in a children's museum that are led by children. The point estimate is. (Type an integer or decimal rounded to three decimal places as needed.)
Which questions would you pair to form a cross tabulation to uncover the following relationships? (a) Frequency of fast-food restaurant patronage and restaurant characteristics important to the customer; (b) Age of the head of household and source of information used about fast-food restaurants; (c) Frequency of patronage of Wendy’s and source of information used about fast-food restaurants; and (d) How much children have to say about where the family eats and number of children in the household. Please answer this one as the solution is provided here and I still havent got any free answers!
A) Animal and Frequency Graph- Which type of graph(s) should be used for the following data? Choose all that apply: - Circle Graph - Bar Graph - Dot Plot - Histogram B) Height and Weight Graph- Which type of graph(s) should be used for the following data? Choose all that apply: -Circle Graph -Scatter plot -Histogram -Dot plot C) Which type of graph(s) should be used for the following data? Choose all that apply: {2.5, 3.2, 4.3, 6.4, 5.5, 2.3, 5.4, 6.6, 7.6, 6.1, 3.1, 4.3, 5.2} -Stem-and-Leaf plot -Box plot -Histogram -Scatter plot
Don has an assignment to ask at random 10 students in their school about their ages. The data are given in the table below. Age Age Name Mary Name Ivan 10 11 Cecil 13 Vanessa 14 Rea 14 Michael 13 Cynthia 13 Christian 15 Lea 15 Earnest 12 Guide Questions: 1. What is Q₁, Q₂, and Q, of their ages? 2. How many students belong to Q₁, Q₂, and Q, in terms of their ages? 3. Have you realized the process of finding quartiles while doing the activity?
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