Procedural memory-the deep slow-wave stages happens in the last two hours of sleep, declarative-the same as procedural, but falls during the first two hours of sleep. He states that when we learn new skills after 24 hours of not sleeping, in a week the information will diminish. Kotler blames educators in encouraging the sleeplessness. The article also looks at the eating habits of the college students. A survey at Tufts University finds found that 50 percent of students are lots of fat and over 7o percent ate a significant amount of saturated fats.
What is the probability of getting a grade of 91 or less on this exam? 3. The average score of all students in COMM 291 is normally distributed with a mean of 73 and a standard deviation of 8. Suppose another 30 students will take the course next term. Find the probability that the average score of the 30 students will exceed 65.
Theresa Bodsworth Assignment 307 Ai) Data Protection Act 1998, Freedom of Information Act 2000, Health and Social Care Act 2008, and Human Rights Act 1998 Aii) The legal requirements and codes of practice are there to help make sure that you do what is necessary to handle and keep information safe and secure, making sure that all information is written legibly, and kept in a secure location and only passing information to the relevant people and for the necessary reasons. If electronically kept then passwords should be secure, files should be encrypted, save work as you go along, have a back up disk which should then be kept as secure as paper records. Aiii) I would help others understand by putting into practice myself what I am telling them and showing them all they need to know about keeping information secure. By explaining how to put into practice secure methods may not be enough for someone to understand the importance of why this needs to be done. By giving them a practicle example of what could happen would help others to realise the implications of not keeping information secure.
True False Question 9 __________ is a measure of dispersion of random variable values about the expected value. | | |Standard deviation | | | |Range | | | |The z-score (the standard score) | | | |All of the above | Question 10 Assume that it takes a college student an average of 5 minutes to find a parking spot in the main parking lot. Assume also that this time is normally distributed with a standard deviation of 2 minutes. What time is exceeded by approximately 75% of the college students when trying to find a parking spot in the main parking lot? | | | | | | | | |Ans: 0.6247 | | | | | | | Question 11
The median would be about forty three thousand a year. E. The first pairing of variables to be reviewed is the relationship between Household Size and Income. A scatterplot was created in order to look at the correlation between the two variables. From reviewing the scatterplot one is able to determine that there is not much consistency for example, those who make an average of thirty eight thousand dollars a year can have anywhere from two, to four to seven household members. This goes the same for those in the fifty five thousand a year bracket as well those individuals can
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Name: ___________________________________ Date: ______________ 1. A study is designed to determine whether grades in a statistics course could be improved by offering review material. The 250 students in an introductory statistics class are also enrolled in one of 20 lab sections. The 20 lab sections are randomly divided into 2 groups of 10 lab sections each. The students in a set of 10 lab sections are given extra review material during the last 15 minutes of each lab session.
At the first time point, students were seventh through twelfth grade students at 80 high schools and 52 middle schools. High schools were randomly selected from all high schools in the United States, stratified on region of the country, urbanicity, school size, school type, percent White, percent Black, grade span, and curriculum. A feeder (middle) school for each high school chosen was also selected to participate. The study population consisted of 20,747 participants who participated in both waves of measurement under study. Response rate at Wave 1 was 78.9% and 88.2% at Wave 2; as high school seniors at Wave 1 were not included in Wave 2 because according to Hoffman, Monge, and Chou: “Retention is not a valid measure for this study”(p.
It must contain at least a certain number of observations C. It refers to descriptive statistics D. All of the above are correct 4. Which of the following is not a reason for sampling? A. The destructive nature of certain tests B. The physically impossibility of checking all the items in the population C. The adequacy of sample results D. All the above are reasons for sampling 5.
To yield and to develop their theories and conclusions. The scientific method for the natural sciences relies the most on reasoning as the way of knowing. This method attempts to test observations and have reliable and reproducible results, a process in which many participate in and improve upon with the aim of describing the world in an objective manner. This means that a theory in the field of natural science must be tested until the