Exam 12: Descriptive Statistics Activities and Resources

Given the following scores on a midterm exam 72, 89, 91, 90, 100, 68, 80,76, 78,94,94,90,84,86,88,87,92,96,74,93, find the best answer to the following questions. -Calculate the mean of the scores.

Anton collected survey data regarding teachers' use of technology in their teaching activities. He was pleased that his data are generally normally distributed. Among other data, he collected age, number of years teaching, highest degree held, amount of time spent in online office hours weekly, and whether the teacher reported using an electronic discussion board. -Anton will most likely report which of the following measures of central tendency for the variable number of years teaching?

In a distribution with a mean of 68 and a standard deviation of 4, 84% of scores fall below a score of approximately

Of the following, which represents a positively skewed distribution?

Claus received a raw score of 86. Given that the test had a mean of 88, and a standard deviation of 4. What is Claus's approximate t -score? -What can we conclude about Claus's stanine score?

Logan accessed an existing database to answer his research question regarding the role of identification of a learning disability and odds of going to a private school. The variables of interest include category of disability, type of school, achievement scores in the first, third, and sixth grade, parents SES. -Logan needs to report the measure of central tendency for his variable category of disability, which measure should he use?

Which of he following is NOT a measure of central tendency?

Given the following distribution-24,19,15,18,16,24,17-the score that best represents the median is

The measure of central tendency that represents the most frequently occurring score is the

Betsy is reporting the results of standardized testing to parents of her class students. Natal received a t score of 80. -Given Natal's t-score, his z-score would be

The statistical symbol 'n' represents

Given the following scores on a midterm exam 72, 89, 91, 90, 100, 68, 80,76, 78,94,94,90,84,86,88,87,92,96,74,93, find the best answer to the following questions. -What is the range?

Claus received a raw score of 86. Given that the test had a mean of 88, and a standard deviation of 4. What is Claus's approximate t -score? -Which of the following best represents Claus's z- score?

Anton collected survey data regarding teachers' use of technology in their teaching activities. He was pleased that his data are generally normally distributed. Among other data, he collected age, number of years teaching, highest degree held, amount of time spent in online office hours weekly, and whether the teacher reported using an electronic discussion board. -Anton will most likely report which of the following measures of central tendency for the variable highest degree held?

Given the following distribution-24,19,15,18,16,24,17-the score that best represents the mean is

The measure of central tendency used for interval and ratio data is the

To convert a raw score to a z score, one needs the following information:

If there are extreme scores in a data set, what is the most appropriate measure of central tendency to indicate the most typical score?

Quantitative indices calculated for an entire population are referred to as

Given the following distribution-24,19,15,18,16,24,17-the measure of central tendency best to report is the