Please put all the formulas.. please be accurate

Problem 1 In a test of the hypothesis Ho: / = 50 versus HA: M > 50 a sample of n = 40 observations was found to have mean x = 58 and standard deviation s = 25. a. Give the definition of a p-value. b. Calculate the p-value for this test. c. Can you reject the null hypothesis at the 10% level of significance? at the 5% level of significance? at the 1% level of significance? Explain the criterion you use. Illustrate your answer with a graph