A researcher wants to see whether high school students from different areas of Virginia differ in their preparedness for college. A random sample of 90 high school seniors took the College Preparedness Scale, where higher scores indicate greater college preparedness. Thirty of these students live in Northern Virginia, 30 students live in Richmond, and 30 students live in Virginia Beach. 1. Find the Independent variable? A. Region of Virginia B. College preparedness C. Robots D. Elephants 2. How many levels of the independent variable are there? A.3 B. 2 C. 1 D. 90 3. Is this a between- or within-subjects design? A. Between-Subjects B. Within-Subjects 4. Which test would you use to analyze this scenario? A. One-Way Between-Subjects ANOVA B. One-Sample T-Test C. Independent Groups t-test D. Correlated Groups t-test 5. Find the critical value for this scenario.
Inverse Normal Distribution
The method used for finding the corresponding z-critical value in a normal distribution using the known probability is said to be an inverse normal distribution. The inverse normal distribution is a continuous probability distribution with a family of two parameters.
Mean, Median, Mode
It is a descriptive summary of a data set. It can be defined by using some of the measures. The central tendencies do not provide information regarding individual data from the dataset. However, they give a summary of the data set. The central tendency or measure of central tendency is a central or typical value for a probability distribution.
Z-Scores
A z-score is a unit of measurement used in statistics to describe the position of a raw score in terms of its distance from the mean, measured with reference to standard deviation from the mean. Z-scores are useful in statistics because they allow comparison between two scores that belong to different normal distributions.
A researcher wants to see whether high school students from different areas of Virginia differ in their preparedness for college. A random sample of 90 high school seniors took the College Preparedness Scale, where higher scores indicate greater college preparedness. Thirty of these students live in Northern Virginia, 30 students live in Richmond, and 30 students live in Virginia Beach.
1. Find the Independent variable?
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