Determine whether there is a significant difference on the perceived capabilities in research when grouped according to religious affiliation. Religious Perceived Capabilities Affiliation Christian 4.2 4.2 1.5 Buddhism 3.5 5.0 4.8 Hinduism 1.6 3.2 3.9
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- A school psychologist notes that the average number of times that students are disrup- tive during class is 1.4 (u 1.4] times per day Following recent classroom policy changes the psychologist tests if the number of disrup- tions during class has changed. He records the following number of disruptions observed during a class day: 2, 4,3, 5, 4, 1, 1, and 4 1. Test the hypothesis that the number of complaints has increased or decreased using a .05 level of significance. State the value for the test stastistic and the decision to retain or rejct the null hypothesis. 2.compute effect size using estimated Cohen's D.Develop two research hypotheses: (a) one that would be used to examine differences between two unrelated groups and (b) one that would examine differences between two dependent groups.#2. The following data show the educational level and productivity of 20 employees in the City of Fullerton Social Services Agency. Set up a contingency table on education and productivity and analyze your table to explain if there is a relationship between employee education and productivity. Education: SC = some college, BA = bachelor’s, MA = master’s Productivity = number of cases completed per week by the employee
- 10.32 The Society for Human Resource Management (SHRM) collaborated with Globoforce on a series of organizational surveys with the goal of identifying challenges that HR leaders face and what strategies help them conquer those challenges. A recent survey indicates that employee retention/turnover (46%) and employee engagement (36%) were cited as the most important organizational challenges currently faced by HR professionals.One strategy that may have an impact on employee retention, turnover, and engagement is a successful employee recognition program. Surveying small organizations, those with 500 to 2,499 employees, and large organizations, those with 10,000 or more employees, SHRM and Globoforce showed that 326 (77%) of the 423 small organizations have employee retention programs as compared to 167 (87%) of the 192 large organizations.Source: Data extracted from SHRM Survey Finding: Influencing Workplace Culture Through Employee Retention and Other Efforts, bit.ly/2rFvE9w. a. At…A report stated that based on observing a large number of vehicle occupants, the estimated percentage of drivers and passengers in a certain country who wear seatbelts is 83.2%. The report also gave information on seat belt use by sex and by whether the vehicle is traveling in an urban or rural area. The information in the following table is consistent with summary values given in the report. Urban Areas Rural Areas Male Female Male Female Seat belt 851 908 750 817 No Seat belt 149 92 250 183 Assume that these data are representative of drivers and passengers in the country. Consider the following conclusion. Females are more likely to wear seat belts than males in both urban and rural areas. The difference in the percentage of females and the percentage of males who wear seat belts is greater for rural areas than for urban areas. Provide a justification for this conclusion. Use the information in the table to calculate relevant probabilities. The differences in the proportions for…A developmental psychologist who wanted to know if the age when children started walking affected school performance divided 48 children into 16-Early, 16-Middle, and 16-Late Walkers. At the end of the second grade, the psychologist computed a composite school performance score based on teachers' reports. The means and estimated population variances for the three groups were: Early Walkers: M = 33, 52 = 25; Middle Walkers: M = 42 52 = 36; Late Walkers: M = 42. 52 = 16. a.) Is there a difference in school performance score between three walking groups? (Use the.05 level.) Use the five steps of hypothesis testing. Label all the steps clearly. Show ALL Work/calculations. b.) Report the statistic in APA format (the statistical sentence).
- To be more certain that a treatment actually does have an effect (instead of making a Type I error), a researcher should use a larger value for α. Group of answer choices True FalseIs the transportation mode used to ship goods independent of type of industry?Suppose the following contingency table represents frequency counts of types of transportation used by the publishing and computer hardware industries.Analyze the data by using relevant test to determine whether type of industry is independent of transportation mode at 5%level of significance. Transportation Mode Air Train Truck Publishing 32 12 41 Hardware 5 6 24A professor found out from a senior professor that engineering students in Harp University tend to do good in their Engineering Management subject, claiming that historically, the mean grade of engineering students in the said course is 1.50. Curious if this claim was true, the professor took a random sample of 9 students who took the engineering management subject. Before collecting data, he was undecided about his own claim because he knew of some students who did really good in the course but has also encountered others who did poorly. He found that their mean grade for the course is 1.35 with a standard deviation of 0.50. Use the Test of Significance Approach in testing the professor’s claim. a. Estimate population mean at 90% confidence interval. b. Between z and t, which is more appropriate to use given the data? Why? c. What are the chances that your estimate of population mean was wrong? Describe and explain a potential source of error to your estimate. d. Holding % of CI…
- Do well-rounded people get fewer colds? A study on the Chronicle of Higher Education was conducted by scientist at Carnegie Mellon University, the University of Pittsburgh and the University of Virginia. They found that people who have only a few social outlets get more colds than those who are involved in a variety of social activities. Suppose that of the 276 healthy men and women tested, n1=96 had only a few social outlets and n2=105 were busy with six or more activities. When these people were exposed to a cold virus, the following results were observed: Construct a 99% confidence interval for the difference in the two population proportions.Some research has shown that older parents are not as strict when disciplining their children compared to younger parents. Children of older parents are more likely to be in daycare and have greater independence than children of younger parents, whereas children of younger parents are more likely to be at home with parents and other siblings, and encounter more home discipline. A researcher observed the disciplinary habits of 456 families with at least one child, categorizing each as "high" or "low" in terms of disciplinary strictness. The families were also divided into older parents (those 29 years of age or younger) and older parents (30 years old and up). Are the following data consistent with the hypothesis that older parents are not as strict when disciplining their children? Calculate gamma and interpret it's direction and magnitude, and summarize your findings in a few sentences. Level of discipline Parental age 29 years or younger 30 years or…City planners believe that larger cities are populated by older residents. To investigate the relationship, data on population and median age in 10 large cities were collected. City Population City(in millions) Median age Chicago, IL 2.833 31.5 Dallas, TX 1.233 30.5 Houston, TX 2.144 30.9 Los Angeles, CA 3.849 31.6 New York, NY 8.214 34.2 Philadelphia, PA 1.448 34.2 Phoenix, AZ 1.513 30.7 San Antonio, TX 1.297 31.7 San Diego, CA 1.257 32.5 San Jose, CA 0.930 32.6 Click here for the Excel Data File Draw a scatter diagram. On the graph below, use the point tool to plot the point corresponding to the first Population City and its Median age(Population 1). Repeat the process for the remainder of the sample (Population 2, Population 3, … ). To enter exact coordinates, double-click on the point and enter the exact coordinates of x and y. Find the correlation coefficient. (Round your answer to 3 decimal places.)…