Multiple Choice
A researcher believes that the gender of fiction authors influences book sales online, but he is unwilling to say whether female writers have more new books sold or fewer new books sold relative to men. What would be the most appropriate type of research hypothesis in this case?
A) a one-tailed test
B) a skewness test
C) a symmetrical test
D) a two-tailed test
Correct Answer:

Verified
Correct Answer:
Verified
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