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This question has the same data that you worked with in question 19, but the description has been changed to fit an independent-samples study.
Subjects are tested for their ability to read emotional expressions on people's faces. Some people are tested without any manipulation, while a different group is tested after a stress manipulation. Assignment to the two conditions is random. The stress experience is expected to affect the ability of the subjects in the stress
manipulation condition to correctly read facial expressions. The scores (dependent variable) indicate the number of correctly identified expressions.
Here are the scores for the subjects in the control condition: 10, 9, 8, 7, 7, 4, 4.
Here are the scores for the subjects in the stress condition: 5, 7, 5, 6, 4, 5, 3.
What is the value of the t-statistic for these subjects?
Report your answer as a positive number showing two places to the right of the decimal.
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