Last year, a real estate agent earned an average of 40,250.00 a month. Suppose you recently selected a random sample of 25 real estate agents. You determined how much each of them earns each month....

Extracted text: Last year, a real estate agent earned an average of 40,250.00 a month. Suppose you recently selected a random sample of 25 real estate agents. You determined how much each of them earns each month. Your computations of their earnings resulted to an average of 40,400.00, with a standard deviation of P225.00. Using a 0.01 level of significance, can it be concluded that the average monthly earnings of real estate agents has increased? Assume normality in the population. CS Scanned with CamScanner