A sample of 96 observations has been selected to test whether the population mean is greater than 25. The sample showed an average of 26 and a standard deviation of 5.7. You want to test this hypothesis at 90% level of confidence using the critical value approach. First, compute the critical value and the test statistics associated with this test. Second, compute the difference between the test statistic and the critical value (test statistic - critical value).What is thisdifference?

NOTE: WRITE YOUR ANSWER WITH 4 DECIMAL DIGITS. DO NOT ROUND UP OR DOWN. MAKE SURE YOU INDICATE THE SIGN OF THIS DIFFERENCE CORRECTLY.