The Question Below Refers to the Following Data

question 39

Essay

The question below refers to the following data:
A social researcher wants to test the hypothesis that college students who drink alcohol while text messaging create a different number of keystrokes than those who do not drink while they text. The social researcher studies 50 drinking texters and 50 non-drinking texters. The average number of keystrokes for the drinking texters was 142 with a standard deviation of 7.45. The average number of keystrokes for the non-drinking texters
was 134 with a standard deviation of 6.81.
What are your degrees of freedom?

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