The Mathematics Department in a certain university is conducting a study to determine how long it takes it graduates find a job. A sample of 26 gra tes was surveyed and it was found that the average time it has taken a graduate to finc new job is 3.5 months with a standard deviation of 1.5 months. Is there sufficient evidence to conclude that the graduat of this department take on the average at most three months to find a job at 10% level of significance?

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