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iTunes is an online digital media store operated by Apple. Songs may be purchased individually, and each song has a popularity meter that keeps track of how many consumers have downloaded the song. What information does the popularity meter on iTunes give to consumers, and does the meter itself influence how many consumers download songs? Explain.
Correlation Coefficient
A metric that determines the intensity and orientation of a linear connection between two variables.
T Test
A statistical test used to determine if there is a significant difference between the means of two groups which may be related in certain features.
One-tailed Test
A statistical test that determines the direction of a relationship between variables, assessing whether one mean is greater than or less than another.
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