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SCENARIO 3-3
The ordered array below represents the number of vitamin supplements sold by a health food store in
a sample of 16 days. Note: For this sample, the sum of the values is 448, and the sum of the squared differences between
each value and the mean is 812.
-Referring to Scenario 3-3, is the number of vitamin supplements sold in this sample lepokurtic or
platykurtic?
Independent Variables
Variables in an experiment or model that are manipulated to observe their effect on dependent variables.
Relevant Predictors
Variables that have a significant impact on the outcome of a statistical model or prediction.
T-statistic
A statistic derived from sample data that is used in hypothesis testing to determine if there is a significant difference between sample means.
Regression Model
A mathematical representation used in statistics that describes the relationship between a dependent variable and one or more independent variables.
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