If mu represents the mean increase in the verbal sat score, Ask an Expert

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A company advertises that by using its program, high school students can increase their verbal SAT scores by more than 50 points. A high school teacher is skeptical of this claim. The teacher plans to examine data from a sample of students who use the program to test if the claim is true. If μ represents the mean increase in the verbal SAT score if all high school students used the method, the alternative hypothesis the teacher wishes to test is what?

Ha: μ ≠ 50
Ha: μ > 50
Ha: μ < 50
Ha: μ = 50

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