e average salary for American college graduates is $48,800. You suspect that the average is less for graduates from your college. The 50 randomly selected graduates from your college had an average salary of $46,328 and a standard deviation of $12,770. What can be concluded at the  a = 0.05 level of significance? The test statistic    t =  (please show your answer to 4 decimal places.)   The p-value =  (Please show your answer to 4 decimal places.)

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