Cost Allocation Concepts
A professor finds that the scores on a History exam are known to be normally distributed with mean and standard deviation of 55 and 15, respectively….
A professor finds that the scores on a History exam are known to be normally distributed with mean and standard deviation of 55 and 15, respectively. Determine the passing score if 95% of the students are to clear the course.
The purpose of this study was to investigate the correlation and probable predictive relationship between self-determination skills taught by special…
The purpose of this study was to investigate the correlation and probable predictive relationship between self-determination skills taught by special education teachers and the academic performance of students with disabilities from junior high schools in Taiwan. The subjects included teachers from resource rooms and self-contained classrooms (n = 106) and students with disabilities in these classes (n = 106). Two measures, the Teaching Self-determination Scale (TSDS) and the Basic Learning Competency Assessment (BLCA), were used to collect data. The Pearson correlation, bivariate linear regression and stepwise multiple regression analyses were used to assess the correlation and predictive relationship between the […]
1) Assume Z is a random variable with a standard normal distribution (that is, a mean of = 0 and a standard deviation of 1 ). What is P(Z -0.5)?
1) Assume Z is a random variable with a standard normal distribution (that is, a mean of µ = 0 and a standard deviation of 1). What is P(Z < -0.5)? How about P(Z > -0.5)? (Section 5.1) 2) Now let’s that assume X is a random variable that has a normal distribution with µ = 100 and a standard deviation of 15. What is P(X > 115)?
Scores on the ACT college entrance exam follow a Normal distribution with mean 18 and standard deviation 6. Wayne and Clayton are both taking the…
Scores on the ACT college entrance exam follow a Normal distribution with mean 18 and standard deviation 6. Wayne and Clayton are both taking the exam this year. What is closest to the probability that their average score is above 20? You can assume their scores are iid random variables from the population.
