A researcher has started work on a new project looking into various aspects of juvenile crime and delinquency. She has a set of data that she has recently collected and wishes to analyze. She is interested in whether the mean age of first arrest differs across gender. Look at the data below and devise a good H0 and H1.
Age of First Arrest
Male Female
15 16
18 20
17 19
14 15
12 17
20 18
The null hypothesis for a t test is that the means are equal. Therefore, an appropriate hypothesis in this case would be H0: ?1 = ?2.
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