Jason decides to perform a hypothesis test to calculate the test-statistic to check whether the average waiting time of truck drivers on a queue after the implementation of the new system is less than the average before it was implemented. H0 : The new average waiting time of truck drivers on a queue is not less than the old average of 250 minutes H1 : The new average waiting time of truck drivers on a queue is less than the old average of 250 minutes What is the test-statistic of the hypothesis test? what is the P value using the test statistic considering a 90percent confidence level.