High-powered experimental engines are being developed by the Hendrix Motor Company for use in their new sports coupe. The engineers have calculated the maximum horsepower for the engines to be 640 HP. Sixteen engines are randomly selected for testing. Perform a hypothesis test to determine whether the data suggests that the average maximum horsepower for the experimental engine is significantly different than the maximum horsepower calculated by the engineers. Assume the data are normally distributed and use a significance level of 0.05. Maximum Horsepower (HP) 619 641 690 612 592 638 665 611 619 684 603 607 619 594 590 605 Copy Data Step 2 of 3 : Compute the value of the test statistic. Round your answer to three decimal places. Answer Tables Keypad Keyboard Shortcuts