A certain academic program claims that their students graduate in less than 4 years on average. A random sample of 50 students is taken and the mean and standard deviation are found. The test statistic is calculated to be -1.69. Using a 5% significance level, the conclusion would be: a) there is sufficient sample evidence for the program’s claim to be considered correct. b) there is insufficient sample evidence for the program’s claim to be considered correct. c) there is insufficient sample evidence for the program’s claim to be considered incorrect. d) there is sufficient sample evidence for the program’s claim to be considered incorrect.

Suppose that the heights of male students at a university have a normal distribution with mean = 65 inches and standard deviation = 2.0 inches. A randomly sample of 10 students are selected to make up an intramural basket ball team.

i) What is the mean (mathematical expectation) of xbar?

ii) What is the standard deviation of x bar?

iii) What is the probability that the average height (x bar) of the team will exceed 69 inches?

iv) What is the probability that the average height (x bar) of the team will be between 62 and 70 inches?

How do families influence students' educational outcomes in the 21st century? Consider the messages that parents communicate to their children. What impact do these messages have on the overall educational experience? Address the ways in which schools/teachers/administrators communicate with parents. What messages are shared? Which topics are avoided or overlooked? What recommendations would you offer to schools and families in communicating about the students' educational pursuits? Do your recommendations differ as you examine the spectrum of educational options available (e.g., K-12, college)?

You are tasked to code a software prototype of this feature in Java.

The system will be provided the course code, course name, CRN, the total number of students, course credit hours.   The system should calculate and display the following statistics:

1. Total student credit hours, which is the total number of students times course credit hours.
2. FTE for the course, which is the total student credit hours divided by 40.
3. Total amount of tuition generated in USD from the course. The instate undergraduate tuition at this college is $350.12 per credit.

Q1: You are given a responsibility as IT manager to implement knowledge management system for Ajman University (AU) students. How would you design a knowledge management system that will help student during registration process:

a)         What issues can a KM system be of help for them (AU students) in registration process? [2]

b)         What are the needed infra structure, mechanisms and technologies, and applications that could be used in managing the processes of that system? [2]

c)         Give a sequence of sub-processes that could be used in that system [2]

Read and review the Module 2 content before responding to this discussion. Please choose one of the questions below and provide a 3-5 sentence response. What are the differences between a summary, a direct quote, and a paraphrase? Provide an example of all three - a summary, a direct quote, and a paraphrase. Where can academic sources be found to assist you in locating valid outside sources for academic writing? What resources are available to help students avoid plagiarism and how can these resources help students uphold academic integrity?

a) A researcher was interested in whether the female students who enrolled in her stats course were more interested in the topic than the males. The researcher obtained a random sample of 8 male and 8 female students and gathered their scores on an Interest in Statistical Topics (IST) Survey.

Girls’ IST scores: 21, 37, 22, 20, 22, 20, 22, 21

Boys’ IST scores: 20, 20, 20, 21, 21, 20, 23, 21

Test the researcher’s hypothesis using α =.05

In most elementary school classrooms there are several children who will have difficulty comprehending the grade-level social studies textbook. Teachers can help students by implementing appropriate instructional strategies. Explain what each of the following instructional approaches tries to accomplish: (a) Teaching reading strategies through reciprocal teaching, and (b) Question classification/answer verification through Question/Answer Relationship (QAR). HINT: Don’t describe a teaching sequence, explain what the approach tries to teach students to be able to do.

Non-Parametric Tests

Complete each part and then put together a finalized report (Word document) of your findings. Copy/Paste any tables, Excel formulas, etc. in an appendix at the end of the document.

Part I - Do Students Really Cheat?

In a recent poll, 400 students were asked about their experiences with witnessing academic dishonesty among their classmates. Suppose 172 students admitted to witnessing academic dishonesty, 205 stated they did not and 23 had no opinion. Use the sign test and a significance of 0.05 to determine whether there is a difference between the number of students that have witnessed academic dishonesty compared to those that have not.

Part II – Is There Really a Difference in Studying vs. “Obtaining Answers”

Salaries were collected by recent graduates that were placed in groups that either admitted to dishonesty during college or they were honest the entire degree. We wish to test if after graduation their salaries are the same or if there is a difference in their salaries? Use a level of significance of 0.10. Be sure to clearly state what you are testing as well as interpret your final results.

The data is as follows:

1. Researchers believe that the action theory has implication merits in terms of improving academic achievements. An intervention has been designed based on the action theory and implemented on 8 students in an attempt to enhance their grade in Experimental Psychology class. Before the intervention, the experimenter used a set of 20 questions randomly selected from GRE Psychology Subjective question bank to assess students’ understanding of fundamental concepts in psychology. The grade is based on a 0-20 scale, a higher number indicating a higher grade and better academic achievement. After 6-week intervention, the experimenter tested the same group of students with the same 20 questions to assess the grade change (if any). (12 pts)

The grades are below:

Be sure to include the following parts:

1. State the null and alternative hypothesis. (1 pts)
2. Report df and critical values. (1 pts)
3. Calculate the value of your test statistic from the data. (6 pts)
4. Evaluate your hypotheses and make statistical decision. (2 pts)
5. Interpret the results and answer the research question - Does this intervention improve students’ grade in Experimental Psychology class? (2 pts)