Examlex
A major difference between bar graphs and histograms is that _____.
Effect Size
A quantitative measure of the magnitude of the experimental effect from a study, indicating the size of the difference between groups.
T-statistic
A statistic calculated from a sample of data used to conduct a t-test, which assesses whether there is a significant difference between the means of two datasets.
Type II Error
An error that occurs when a statistical test fails to reject a false null hypothesis, indicating a missed opportunity to detect an actual effect or difference.
Type I Error
The incorrect rejection of a true null hypothesis, also known as a "false positive".
Q2: A frequency polygon is typically used when
Q15: _refer(s)to the tendency for scores to cluster
Q23: A positive slope indicates _ between two
Q34: As degrees of freedom for the sampling
Q41: The total area under a density curve
Q59: A weakness of many nonparametric statistical tests
Q62: Variability for the sum of squares _
Q108: When both of the variables under study
Q125: The measure of central tendency not affected
Q143: Which correlation coefficient most closely represents the