If PR45 = 50, Mo = 56, S(X - 39) = 0, what is the most likely shape of this distribution?
a. normal
b. bimodal
c. negatively skewed
d. positively skewed
e. This is impossible to determine without more information.
Ans: c
You might also like to view...
The concept of object permanence is developed by the end of the
a. Sensorimotor stage. b. Preoperational stage. c. Concrete Operations stage. d. Formal Operations stage.
A group of 8 stockbrokers were assessed for the worth of their investments over the course of a year. The following year the CEO reduced the commission rate payable to stockbrokers making good investments. Once again, the value of the broker’s annual investment was totalled. The data were not found to be normally distributed. Which non-parametric test should the analyst therefore use on this project?
A. Paired t-test B. Mann-Whitney test C. Wilcoxon signed-rank test D. Wilcoxon rank-sum test
Value of the same sex and objects and activities pertaining to that sex becomes particularly pronounced by the time children enter high school
Indicate whether this statement is true or false.
A representative of a parent group affiliated with the school approaches a teacher about making improvements to the playground. She asks for suggestions from the teacher about establishing a creative, safe play environment for students. What are good suggestions the teacher can offer?
A) Remove all the existing equipment and replace the surface with natural materials that provide some cushioning so that wide, open spaces are maximized. B) Gather information on children's preferences and developmentally appropriate play spaces, consider how many children can be accommodated by each piece of equipment, designate areas in which children can engage in different types of outdoor activities, and consider how to make the playground accessible to children with special needs. C) Hire a professional designer to make the playground visually appealing to adults and install as much stationary new equipment as the group can afford. D) Focus on inexpensive equipment (e.g., balls, hula hoops, jump ropes, hopscotch) to get the most for the money spent.