NSG 522 Pre Midterm Questions and Answers 2024/2025
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Course
NSG 522
Institution
NSG 522
Frequencies
Just the count or number of observations in each category. Abbreviated as 'n' or 'f'
Relative Frequency
The number of times a particular observation occurs divided by the total number of
observations.
Frequency Distribution
A summary of the numerical counts of the val...
The average distance that values in a distribution are from the center.
Z-Scores
A measure that indicates how many standard deviations a value is from the mean
value.
Normal Distribution
A probability distribution in which the mean, median, and mode are equal with a bell-
shaped distribution curve
Outliers
An extreme value of a variable, one that is outside the expected range. Defined as a
value that is more than 1.5x the interquartile range above or below the edges of the
box.
Shapiro Wilkes Test
A test for presence/absence of normality to determine what type of statistics can be
used. If the p-value is > or = to .05, there is NOT a statistically significantly difference
in distribution = a NORMAL DISTRIBUTION.
If p-value is < .05, there is a statistically significant difference between the distribution of the
variable. NOT NORMAL DISTRIBUTION
How nominal data can be summarized using descriptive statistics
Only mode can only be used for nominal variables
How ordinal data can be summarized using descriptive statistics
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