To perform independent sample t test.
A sample of scores on an examination given to both males and females in MAT 560 is:
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Males
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72, 69, 98, 66, 85, 76, 79, 80, and 77
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Females
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81, 67, 90, 78, 81, 80, and 76
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At the .01 level of significance, is the mean grade of the female students higher than that of males?