The research question: Is there a difference in preference between Text A and Text B? The table below presents the data. Assume the observed value equals 3.71.
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Textbook A
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Textbook B
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Like
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10
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15
|
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Dislike
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18
|
9
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a. What is the null hypothesis?
b. Calculate the degrees of freedom?
c. Assuming an alpha of .05, what is the critical value?
d. Do you reject the null hypothesis? Explain your answer.