BST322 Final Exam 2023

1. Information collected in a numerical form is called - quantitative 2. Which measure of central tendency is at the highest point on a graph? - mode 3. Correlation coefficient tests allow you to determine if a cause-and-effect relationship is present. - false 4. Data that are categorical but can be rank-ordered in a meaningful way are called: - ordinal 5. If the mean is to the left of the median, what is true? - The distribution is negatively skewed. 6. Which measure of variability is used most often in conjunction with the mean? - standard deviation 7. A variable with equal distances between score units which also has a true meaningful zero is: - ratio 8. When calculating a Pearson's correlation coefficient, it is necessary that both variables have approximately normal distributions. - True 9. In a study that examines the effect of a peer mentor on the emotional status of patients, what is the dependent variable? - emotional status 10.Which quartile has the same value as the median? - 50% 11.The third quartile is: - the point below which 75% of the scores lie. 12.Statistics that allow for inferences to be made about a population from the study of a sample are known as: - inferential 13.What is the best description of the distribution below? __/_ - leptokurtic14.The variable "Group assignment" is an example of what level of measurement? - nominal 15.The measure of central tendency that is the point at which half the scores fall above and half the scores fall below is the: - median 16.The variable "religion" is an example of what level of data? - nominal 17.The standard deviation is: - the square root of the variance 18.The variable "miles per hour" is an example of what level of data: - ratio 19.What percent of the children in the study are Hispanic? - 19% (in quiz's chart) 20.The mean and the mode are always the same for a dataset of over 10 values. - false