A new petrol additive is under investigation. Eight cars are tested with 50 litres of petrol without the additive, and then re- tested with 50 litres of petrol with the additive included. The distances travelled (in kilometres) by each car are given in the table below. It is assumed that distance travelled is approximately normally distributed. 1 3 5 6. 7 8 Distance travelled without 505 524 677 582 656 559 635 595 additive Distance travelled with 530 516 695 547 704 571 623 625 additive In testing the hypothesis that the additive increases the distance travelled at the 5% level of significance, which one of the following statements is false? A. The absolute value of the critical value for the test is 1.8946 OB. This is a one-sided test C. The absolute value of the test statistic is 1.0350

A new petrol additive is under investigation. Eight cars are tested with 50 litres of petrol without the additive, and then re- tested with 50 litres of petrol with the additive included. The distances travelled (in kilometres) by each car are given in the table below. It is assumed that distance travelled is approximately normally distributed. 1 3 5 6. 7 8 Distance travelled without 505 524 677 582 656 559 635 595 additive Distance travelled with 530 516 695 547 704 571 623 625 additive In testing the hypothesis that the additive increases the distance travelled at the 5% level of significance, which one of the following statements is false? A. The absolute value of the critical value for the test is 1.8946 OB. This is a one-sided test C. The absolute value of the test statistic is 1.0350

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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