Smartphones have become ubiquitous for most people and have become the predominant means of communication among people. Consider the following data indicating the number of minutes in a month spent interacting with others via a smartphone for a sample of 50 smartphone users. 

a. What is the mean number of minutes spent interacting with others for this sample? How does it compare to the mean reported in the study? 

b. What is the standard deviation for this sample? 

c. Are there any outliers in this sample?

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