I try to merge the two datasets below using the following code use test score.dta, clear merge 1:1 student using hw_score.dta, keep(3) nogen But I receive the error: "file hw_score.dta not found" What is the likely reason for this error? student test_score 1 1 82 2 2 74 3 3 93 4 4 91 5 5 91 student hw_score 1 2 99 2 3 82 3 4 83 4 5 90 5 10 70

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