A teacher wants to determine whether three different studying methods lead to different test scores among students. The three groups of students used different methods to prepare for a test: Group A used flashcards, Group B used summarizing, and Group C used practice tests. After the test, their scores are recorded as follows:
Group A (Flashcards): 85, 90, 88, 92, 86
Group B (Summarizing): 78, 85, 80, 84, 82
Group C (Practice Tests): 90, 92, 91, 95, 89
Which test statistic is to be used in problem #2?
1 point
z-test
t-teset
f-test
chi-square
What is the computed value for the test statistic of Problem #2?
18.2
19.18
20.5
21.3
Which of the following is true about Problem #1?
There is no significant difference in test scores between the three study methods.
There is a significant difference in test scores between the three study methods.
We accept the null hypothesis.
None of the above.
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