Consider the following causal diagram:
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- TABLE 2.5 Student teachers are trained to develop lesson plans, on the assumption that the writ- ten plan will help them to perform successfully in the classroom. In a study to assess the relationship between written lesson plans and their implementation in the class- room, 25 lesson plans were scored on a scale of 0 to 34 according to a Lesson Plan Assessment Checklist. The 25 scores are shown in Table 2.5. Use Tchebysheff's The- orem and the Empirical Rule (if applicable) to describe the distribution of these assessment scores. Lesson Plan Assessment Scores 26.1 26.0 14.5 29.3 19.7 22.1 21.2 26.6 31.9 25.0 15.9 20.8 20.2 17.8 13.3 25.6 26.5 15.7 22.1 13.8 29.0 21.3 23.5 22.1 10.2The book The Wall Street Journal. Guide to Information Graphics by Dona M. Wong gives strategies for using graphs and charts to display information effectively. One popular graph discussed is the donut pie chart. The donut pie chart is simply a pie chart with the center removed. A recent Harris Poll asked adults about their opinions regarding whether books should be banned from libraries because of social, language, violent, sexual, or religious content. The responses by education level to the question "Do you think that there are any books which should be banned completely?" are shown in the following donut pie charts. (a) What feature of Keith's graph makes it difficult to visually compare the responses of those with some college to those shown in the other graphs? (Select all that apply.) a)The graphs made by Keith and Ramon compare groups across education level. b)The graphs made by Keith and Ramon are all donut pie charts. c)The graphs do not have data labels showing the…Consider the traffic flow described by the following diagram. The letters A through D label intersections. The data was obtained by counting the number of vehicles that travelled around the four one-way streets between the hours of 6 am to 10 am, and 2 pm to 6 pm during the mid-week peak traffic hours. The arrows in the diagram indicate the direction of flow of traffic in and out of the network that is measured in terms of number of vehicles per hour (vph). 3a) Write the system of linear equations for each intersection. 3b) Use Gauss-Jordan elimination to solve the system.
- Refer to the (x-bar) chart in Section 8.2 Exercise 6 of the text.According to this (x-bar) chart, is the process within statistical control? If not, provide a reason why not. a. It does not appear to be within statistical control because at least one point is more extreme than the UCL or LCL. b. It appears to be within statistical control. c. It does not appear to be within statistical control because there is an obvious non-random trend, cycle, or pattern in the points. d. It does not appear to be within statistical control because at least 8 consecutive points are located all above or all below the centerline.Refer the following graph: Number of words recalled 9 5 4 ambient Memory Experiment 0 warm ab$WordType real nonsense Learning Environment (warm room vs cool room) a. Indicate whether there is a main effect of Word Type (real word or nonsense word). b. Indicate whether there is a main effect of Learning Environment (cool room or warm room). c. Indicate whether there is an A x B interaction effect.2. A researcher conducts a study examining the effectiveness of a group exercise program at an assisted living facility for elderly adults. One group of residents is selected to participate in the program, and a second group serves as a control. After 6 weeks, the researcher records a combined score measuring balance and strength for each individual. The data are as follows: Control n = 10 M = 12 SS = 120.5 Exercise n = 15 M = 15.5 SS = 190.0 Conduct the four steps for hypothesis testing and label a. Use a two-tailed test with a = .05. each step: Step1, Step 2, Step 3, and Step 4. b. Calculate Cohen's d. c. Are the data sufficient to conclude that thier is a significant difference? Write your answer in the form of a sentence.
- Data managementAttitude towards old age and depression was studied in a group of ten old people and following is the data obtained. Calculate the decree of relatedness of attitude towards old age and depression. Subjects: 1 2 3 4 5 6 7 8 9 10 Attitude Towards Old Age: 15 12 16 14 17 18 14 16 19 18 Depression 27 26 34 29 36 36 30 35 40 38You are a manager for Company ABC and decide to compile data and analyze your employees’ level of satisifaction. You create a survey to ask each employee to rate their level of satisfaction working at Company ABC. Table 1 shows data of 15 people employees that responded to your survey. Each of the employees have the same job title: Sales Representative. The data set includes variables regarding an employee ID, gender, ethnicity, region, pay rate, employee satisfaction rating. Each employee was asked to rate their level of satisfaction working at Company ABC. A composite score from 0 (lowest) to 5 (highest) is shown as the data variable employee satisfaction. Table 1: Employee Data on 15 Sales Representatives at Company ABC
- 1. Learn by Doing (page 68): In this activity we have data from 21 female college students. Forearm length in inches is the explanatory variable. Height in inches is the response variable. The line is a good summary of the linear pattern in the data. a. Based on the graph of this line, which is the best prediction of the height of a woman with a forearm of 11 inches? i. 64.5 inches ii. 68 inches iii. 68.75 inches iv. just under 72 inches 74 72 70 68 66 64 62- 60 b. The equation of this line is: Predicted height = 39 + 2.7 * forearm length. Use the equation of the line to predict the height of a woman with a 10-inch forearm. 58- 56 %3D 10.5 forearm (inches) 8.0 8.5 9.0 9.5 10.0 11.0 11.5 12.0 12 height (inches)Q.es 3. Final: In a large city, two newspapers are published, the Globe News and the Daily News. The circulation departments report that 27% of the city's households have a subscription to the Glob News and 41% subscribe to the Daily News. A survey reveals that 11% of all Not Marke households subscribe to both newspapers. What is the percentage of the city's households subscribe to at least one newspaper I Fl. O a.73 O b.46 O c.57 O d. 81 Previous page
