Doing a sampling of the demographics in college around the United States in 2009 it can be seen that 65% of the students are women and 45% are male. In Dr Zak’s test it was distributed as 70% female and 30% male. Of the distribution among races it was as follows: 65% White, 14% Black, 11% Hispanic, and .7% Asian. When looking at the test subjects for Dr Zak it is seen that 89% of the students were White, .04%
| | | Student Answer: | | $2,697.93 | | | | $2775.79 | | | | | $2921.86 | | | | | $3,075.64 | | | | $3,237.52 | | Instructor Explanation: | The answer represents the present value of the cash flows discounted by 5.5% over three years. | | | | Points Received: | 6 of 6 | | Comments: | | | | Question 4. | Question : | How much would $5,000 due in 50 years be worth today if the discount rate was 7.5%? | | | Student Answer: | |
RSCH202 – Quantitative Data Analysis Assignment In this assignment, you will be required to download data and then use techniques from descriptive and inferential statistics to analyze that data. The following sets the scenario for the data set that you will download. StatCrunch U is a fictitious university made up of 46,000 students (the population). Each student completed the survey shown here: That gives us a data base with that information for all 46,000 students. For this assignment, you will first select a sample of 200 students from this population and then analyze the data from the sample to draw conclusions about the entire population of StatCrunch U students.
Question 1: Independent random samples from two normally distributed populations give the following results: nX = 10 x̅ = 480 sx = 30 ny = 12 y̅ = 520 sy = 25 a. If we assume that unknown population variances are equal, what is the 90% confidence interval for the difference of population means? b. If we do not assume that the unknown population variances are equal, find the 90% confidence interval for the difference between the population means. Question 2: A newspaper article reported that 400 people in one state were surveyed and 75% were opposed to a recent course decision.
They did this eight times and each time the retention interval was different. Peterson and Peterson found that when the retention interval was increased participants recall significantly decreased, with participants remembering 90% after 3 seconds but only 2% after 18 seconds. Another research study was made by Bharik et al  on long term memory. In their experiment they asked people of various ages to put names to the faces of people from their high school yearbook. They found that after 48 years people were over 70% accurate.
z-score for verbal ability is (81-50)/20 = 1.55 z-score for quantitative ability is (6.4-0)/5=1.28 This person has a strong ability on verbal , this person is more above the average in verbal ability than the average in quantitative ability You are conducting a survey at a college with 800 students, 50 faculty members, and 150 administrators. Each of these 1,000 individuals has a single listing in the campus phone directory. Suppose you were to cut up the directory and pull out one listing at random to contact. What is the probability it would be (a) a student, (b) a faculty member, (c) an administrator, (d) a faculty member or administrator,
Authoritative and Uninvolved 1 An Assessment on the Authoritative and Uninvolved Styles of Parenting Courtney J. Owens ECE 355 Understanding Behavior & Family Dynamics Instructor: Laura Carlee December 20, 2010 Authoritative and Uninvolved 2 Parenting is a complex activity that includes many specific behaviors that work individually and together to influence child outcomes. Parenting style is often used by parents to control and socialize their children. The adolescent years are critical to the growth and development of a child. The relationships formed between child and parents are based on what parenting style is used in an effort to develop and guide the child. The role of all parents is to influence, teach and control their children.
The data was then obtained from a variety of studies and the results combined to make a total of 106 middle-class children that were observed. They found that 62% of the children shown secure attachment, insecure avoidant 15% and last of all insecure-resistant 9%. The 4 behavioural categories were: 1. Exploration behaviour 2. Separation anxiety 3.Reunion behaviour 4.Stranger Anxiety.
Diana Baumrind on Parenting Diana Baumrind was an American clinical and developmental psychologist whose studies centered on parenting styles and their effect on children. I found her theories particularly interesting because I have seen the effects of my own parents’ choices of parenting as compared to those of our friends and family. I have seen her theories proven time and again so it does not surprise me that psychologists have embraced her theories more than they have been rejected them. Baumrind focused on two important but variable qualities in parents: their responsiveness (individuality and self-regulation,) and their demandingness (disciplinary actions and confrontation.) Using these two variables she named three distinct parenting styles being Authoritarian, Permissive and Authoritative.
Who knows? This is a very delicate topic that has so many different yet valuable attributes, theories and valid points of views; however many are adverse to one another. Most parents attempt to conduct, mold and guide their children’s impulses into socially accepted ones. Therefore, one of their main goals when parenting is to teach these children the necessary skills and accepted rules in order to function and have acceptance within their social groups (Essentials of Psychology, 2005). This is the reason why different social groups adopt different styles of parenting that math their social beliefs, values and interests.