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A researcher conducted a study comparing senior psychology and history majors on their anxiety level before...

A researcher conducted a study comparing senior psychology and history majors on their anxiety level before taking the GRE exam. The researcher produced the following CI [0.81, 1.17] for estimating μ1−μ2. Given this information what can you conclude?

None of the options.

There are no significant group differences on anxiety.   

  Both psychology and history majors have low anxiety.

Both psychology and history majors have high anxiety.

math   Statistics-And-Probability   
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Answer #1

Correct option is:

None of the options

(since interval is for difference and produces interval which have all values above 0, this tells us that psychology major students have higher anxiety level than history majors )

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