Independent samples t-test. An organic chemistry professor is testing whether pop quizzes impact the overall performance of her class. For the experiment, there are two groups created: Group 1 (n = 21) is a section

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Independent samples t-test. An organic
chemistry professor is testing whether pop
quizzes impact the overall performance of
her class. For the experiment, there are two
groups created: Group 1 (n = 21) is a section
of students that will have pop quizzes
throughout the semester and Group 2 (n = 21)
is a section of students that will not have any
pop quizzes. The average final grade for the
students in Group 1 was M = 88 with SS = 180
and Group 2 was M = 82 with SS = 220. Can
the organic chemistry professor conclude
that there is a significant difference between
the two groups? Test with a = 0.05.
a. Conduct a complete hypothesis test
b. Compute estimated r2
c. Give a full APA-style write up of your
results
Transcribed Image Text:Independent samples t-test. An organic chemistry professor is testing whether pop quizzes impact the overall performance of her class. For the experiment, there are two groups created: Group 1 (n = 21) is a section of students that will have pop quizzes throughout the semester and Group 2 (n = 21) is a section of students that will not have any pop quizzes. The average final grade for the students in Group 1 was M = 88 with SS = 180 and Group 2 was M = 82 with SS = 220. Can the organic chemistry professor conclude that there is a significant difference between the two groups? Test with a = 0.05. a. Conduct a complete hypothesis test b. Compute estimated r2 c. Give a full APA-style write up of your results
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