If the null hypothesis states that there is no difference between the mean net income of retail stores in Chicago and New York City,then the test is two-tailed.

Question

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A two-tailed test is appropriate when the null hypothesis states that there is no difference between the two groups being compared. In this case, the null hypothesis is that there is no difference between the mean net income of retail stores in Chicago and New York City, which means that a two-tailed test is appropriate.

If the Null Hypothesis States That There Is No Difference