Find the critical t value for a = 0.05 with d.f. = 17 for a left-tailed t test. USE THE TABLES POSTED IN CANVAS TO SOLVE THIS PROBLEM. Round your answer to THREE DECIMAL PLACES. Example: If C.V. = +9.123, enter 9.123 as your answer. If C.V. = -9.123, enter -9.123 as your answer. If C.V. = +/-9.123, enter +/-9.123 as your